rounding

英 [ˈraʊndɪŋ]

美 [ˈraʊndɪŋ]

n.  发圆唇音; 圆唇
v.  绕行; 绕过; (使)成圆形; 变圆; (将数字调高或调低)使成为整数; 把(数字)四舍五入
round的现在分词

现在分词：rounding　复数：roundings　

计算机化学

BNC.36357 / COCA.28959

牛津词典

noun

• 发圆唇音；圆唇
  the fact of producing a speech sound with the lips in a rounded position

柯林斯词典

PREPOSITION AND ADVERB USES 介词和副词用法

Roundis an adverb and preposition that has the same meanings as ‘around’.Roundis often used with verbs of movement, such as ‘walk’ and ‘drive’, and also in phrasal verbs such as ‘get round’ and ‘hand round’.Roundis commoner in British English than American English, and it is slightly more informal.
round用作副词和介词时与around同义。round常与表示动作的动词连用，如walk和drive，同时也可以用在get round和hand round之类的动词词组中。round在英国英语中比在美国英语中更常用，且略显不正式。

• PREP 在…周围;围绕
  To be positionedrounda place or object means to surround it or be on all sides of it. To moverounda place means to go along its edge, back to the point where you started.
  1. They were sitting round the kitchen table...
     他们正围坐在餐桌旁。
  2. The nightdress has handmade lace round the armholes and neckline...
     这件女式睡衣的袖孔和领口都镶着一圈手织花边。
  3. All round us was desert...
     我们周围全是沙漠。
  4. I shivered and pulled my scarf more tightly round my neck...
     我打了个寒战，用围巾把脖子围得更紧了。
  5. He tramped hurriedly round the lake towards the garden.
     他匆匆地迈着沉重的步伐绕过湖边向花园走去。
  6. ...cycling round and round the park.
     骑自行车围着公园转了一圈又一圈
  7. Roundis also an adverb.
     
  8. Visibility was good all round...
     四周的视野都很好。
  9. The goldfish swam round and round in their tiny bowls.
     金鱼在小小的鱼缸里一圈圈地游来游去。
• PREP 绕过;到…的另一边
  If you moverounda corner or obstacle, you move to the other side of it. If you lookrounda corner or obstacle, you look to see what is on the other side.
  1. Suddenly a car came round a corner on the opposite side...
     突然，对面的街角处拐过一辆汽车。
  2. Stay on the left-hand pavement to follow a road downhill round a curve...
     继续顺着左边的人行道拐一个弯，然后沿路下山。
  3. One of his men tapped and looked round the door.
     他的一个部下轻轻地敲了下门，然后往门里看了一眼。
• PREP 在…各处;遍及;在…附近
  You useroundto say that something happens in or relates to different parts of a place, or is near a place.
  1. He happens to own half the land round here...
     他恰好拥有这里一半的土地。
  2. I think he has earned the respect of leaders all round the world...
     我想他已经赢得了世界各国领导人的尊重。
  3. She's been on at me for weeks to show her round the stables...
     她已经跟我唠叨了好几个星期，让我带她到马厩转转。
  4. They need some way of getting round the country.
     他们需要一种交通工具来周游全国。
  5. Roundis also an adverb.
     
  6. Shirley found someone to show them round...
     雪莉找人带他们到处看了看。
  7. So you're going to have a look round?
     那么你打算到处看看？
• ADV 环绕地;旋转地
  If a wheel or object spinsround, it turns on its axis.
  1. Holes can be worn remarkably quickly by a wheel going round at 60mph...
     以每小时60英里的速度前进的车轮很快就会磨出洞来。
  2. Stars appeared everywhere, spinning round and round, faster and faster.
     满眼金星乱转，而且越转越快。
• ADV 朝反方向地;转身地
  If you turnround, you turn so that you are facing or going in the opposite direction.
  1. She paused, but did not turn round...
     她停了一下，但是并没有转身。
  2. The end result was that the ship had to turn round, and go back to Djibouti...
     最后的结果是这艘船不得不掉转方向，驶回吉布提。
  3. The wind veered round to the east...
     风转向东边刮去。
  4. Tricia looked round in surprise.
     翠西卡惊讶地回头看了看。
• ADV 向不同方向地;四处地
  If you move thingsround, you move them so they are in different places.
  1. He will be glad to refurnish where possible, change things round and redecorate...
     他会很乐意尽可能添置些家具，把东西挪一挪，然后重新装饰。
  2. I've already moved things round a bit to make it easier for him.
     我已经把东西挪了挪，好让他更方便。
• ADV 逐一，挨个（传递）
  If you hand or pass somethinground, it is passed from person to person in a group.
  1. John handed round the plate of sandwiches.
     约翰把那盘三明治传给大家。
  2. ...as the whiskey bottle is passed round.
     当大家传递威士忌酒瓶的时候
  3. Roundis also a preposition.
     
  4. They started handing the microphone out round the girls at the front...
     他们开始把麦克风传给前面的女孩们。
  5. The word is passed round the industry if you think there's a troublesome driver.
     如果你认为某个司机总是惹麻烦，这种话会传遍全行业。
• ADV 去，到，至（某人的家）
  If you goroundto someone's house, you visit them.
  1. I think we should go round and tell Kevin to turn his music down...
     我觉得我们应该去凯文家让他把音乐的声音调小一些。
  2. He came round with a bottle of champagne.
     他带着一瓶香槟过来了。
  3. Roundis also a preposition in non-standard English.
     
  4. I went round my wife's house.
     我去了我妻子家里。
• ADV 在某处（无所事事）
  You useroundin informal expressions such assit roundorhang roundwhen you are saying that someone is spending time in a place and is not doing anything very important.
  1. As we sat round chatting, I began to think I'd made a mistake...
     当我们坐在那里聊天时，我开始认为自己犯了一个错误。
  2. I was running round all hyped up.
     我兴奋地跑来跑去。
  3. Roundis also a preposition.
     
  4. She would spend the day hanging round street corners...
     她会在街角游荡，无所事事地度过这一天。
  5. Leonard pottered round the greenhouse, tying up canes for the tomatoes.
     伦纳德在温室里悠然自得地给西红柿绑上撑杆。

Round,aboutandaroundare used in various ways as prepositions and adverbs, often as part of phrasal verbs. In most cases, you can use either word without any difference of meaning. In American English,aroundis much more common thanround. When you are talking about casual or random movement in no particular direction, you can useaboutas well asaroundandround.It's so romantic up there, flying around in a small plane... I spent a couple of hours driving round Richmond... Police constables walk about with guns on their hips.When you are talking about something being generally present or available, you can usearoundorabout, but notround, as adverbs.There is a lot of talent around at the moment... There are not that many jobs about.
round，about和around用作介词和副词时有多种用法，常用于构成短语动词。在大多数情况下，这3个词没有意义上的区别。在美国英语中around比round常用得多。about，around和round均可用于表示没有特定方向的随意运动：It's so romantic up there, flying around in a small plane (乘着小飞机四处翱翔，多么浪漫啊)，I spent a couple of hours driving round Richmond (我开车在里士满四处转了几个小时)，Police constables walk about with guns on their hips. (警察们胯上别着枪巡逻)。around，about 用作副词可以表示事物通常就在眼前或近在手边，此时不用round，There is a lot of talent around at the moment (目前有很多现成的人才)，There are not that many jobs about (现在并没有那么多的工作机会)。

• PREP 以…为基础;基于
  If something is built or basedrounda particular idea, that idea is the basis for it.
  1. That was for a design built round an existing American engine...
     那是用在以现有的一种美国发动机为基础的设计之上的。
  2. The core of the Festival's programme centres round performances of new and 20th century work.
     这个音乐节最重要的节目以演奏20世纪的作品和新作为主。
• PREP 克服;解决
  If you getrounda problem or difficulty, you find a way of dealing with it.
  1. Don't just immediately give up but think about ways round a problem...
     不要马上放弃，应该想想解决问题的办法。
  2. There are ways of getting round most things!
     有几种可以解决大多数问题的方法。
• ADV （想法等）转过来，发生改变
  If you win someoneround, or if they comeround, they change their mind about something and start agreeing with you.
  1. He did his best to talk me round, but I wouldn't speak to him...
     他竭力想要说服我改变主意，但是我不愿意跟他讲话。
  2. The Chandler twins were coming round to the same opinion.
     钱德勒家的这对双胞胎也最终统一了意见。
• ADV （用于描述以前发生过或定期发生的事情）
  You useroundin expressions such asthis time roundorto come roundwhen you are describing something that has happened before or things that happen regularly.
  1. In the past, the elections have been marked by hundreds of murders, but this time round the violence has been much more limited...
     在过去，这些选举中总是会发生数百起谋杀案，但这一次暴力事件已经非常少了。
  2. Of course, it isn't the same first time round...
     当然，这不同于第一次了。
  3. We were very keen when the 1954 Rally came round.
     1954年的集会开始时，我们都非常热切。
• PREP 周长;围
  You can useroundto give the measurement of the outside of something that is shaped like a circle or a cylinder.
  1. I'm about two inches larger round the waist.
     我的腰围大概粗了两英寸。
  2. ...forty-eight inches round the hips.
     臀围48英寸
  3. Roundis also an adverb.
     
  4. It's six feet high and five feet round.
     它高6英尺，周长5英尺。
• ADV 大约;大概
  You useroundin front of times or amounts to indicate that they are approximate.
  1. I go to bed round 11:00 at night.
     我大约晚上11点上床睡觉。
• PREP-PHRASE 大约;大概
  In spoken English,round aboutmeans approximately.
  1. Round about one and a half million people died.
     大概有150万人死亡。
  2. ...a system that was abolished round about 1902.
     大约在1902年被废除的制度
• PHRASE 处处;所有;整个
  You sayall roundto emphasize that something affects all parts of a situation or all members of a group.
  1. It ought to make life much easier all round...
     它应该会让生活的方方面面都变得更加方便。
  2. Nerves are frayed all round.
     每一根神经都绷紧了。
• PHRASE (在脑海里)萦绕，挥之不去
  If you say that somethingis going round and roundin your head, you mean that you can't stop thinking about it.
  1. It all keeps going round and round in my head till I don't know where I am.
     这一直在我脑海里萦绕，直到我不知身在何处。
• PHRASE 全年;一年到头
  If something happensall year round, it happens throughout the year.
  1. Many of these plants are evergreen, so you can enjoy them all year round...
     这些植物中有很多都是四季常青的，所以一年到头都可以观赏。
  2. It's a treat to be enjoyed all the year round.
     这是全年都能享受到的款待。
• round the corner→ see:corner

NOUN USES 名词用法

• N-COUNT 一连串，一系列，一轮(相关的事件，尤指相继发生的事件)
  Around ofevents is a series of related events, especially one which comes after or before a similar series of events.
  1. It was agreed that another round of preliminary talks would be held in Peking...
     经协商，新一轮的预备会谈将在北京举行。
  2. This is the latest round of job cuts aimed at making the company more competitive...
     这是旨在增强公司竞争力的新一轮裁员。
  3. There will be more frequent rounds of inspection by our security personnel.
     我们的安全人员会进行几轮更加频繁的检查。
• N-COUNT (比赛的)轮，局，场
  In sport, aroundis a series of games in a competition. The winners of these games go on to play in the next round, and so on, until only one player or team is left.
  1. ...in the third round of the Pilkington Cup...
     在皮尔金顿杯的第3轮比赛中
  2. After round three, two Americans share the lead.
     第3轮比赛结束后，两名美国选手领先。
• N-COUNT (拳击、摔跤比赛的)回合
  In a boxing or wrestling match, aroundis one of the periods during which the boxers or wrestlers fight.
  1. He was declared the victor in the 11th round...
     在第11回合中，他被宣布获胜。
  2. Gibson's left eye is completely closed before the end of round one.
     在第一回合结束前，吉布森的左眼完全闭上了。
• N-COUNT (高尔夫球赛的)一场
  Around ofgolf is one game, usually including 18 holes.
  1. ...two rounds of golf...
     两场高尔夫球赛
  2. Ronan Rafferty shot six birdies in a round of 67.
     罗南·拉弗蒂在成绩为67杆的一场比赛中打出了6次小鸟球。
• N-COUNT 圆形物
  Aroundis a circular shape.
  1. ...small fresh rounds of goats' cheese...
     新鲜的小块圆形山羊奶酪
  2. A cucumber was sliced into rounds.
     黄瓜被切成了圆片。
• N-COUNT 一片(面包)；一个（三明治）
  Around ofbread is a slice of bread. Aroundof sandwiches is a sandwich made from two slices of bread.
  1. ...four rounds of toast.
     4片吐司
• N-COUNT 四处拜访;到处走访
  If you do yourroundsor yourround, you make a series of visits to different places or people, for example as part of your job.
  1. The consultants still did their morning rounds...
     这些顾问们上午仍然四处走访。
  2. He got out of the car, and carried on with his paper round.
     他下了汽车，继续带着文件四处拜访。
• N-COUNT (为在场同伴买的)一巡（饮料）
  If you buy around ofdrinks, you buy a drink for each member of the group of people that you are with.
  1. They sat on the clubhouse terrace, downing a round of drinks...
     他们坐在俱乐部会所的露台上，大口喝着别人请的饮料。
  2. I think it's my round.
     我想这轮该我请了。
• N-COUNT 一发(子弹);一次（射击）
  Around ofammunition is the bullet or bullets released when a gun is fired.
  1. ...firing 1650 rounds of ammunition during a period of ten minutes.
     在10分钟之内打出了1,650发子弹
  2. ...the use of live rounds of ammunition.
     使用未引爆的弹药
• N-COUNT 一阵（掌声）
  If there is around of applause, everyone claps their hands to welcome someone or to show that they have enjoyed something.
  1. Sue got a sympathetic round of applause.
     休得到了一片赞成的掌声。
• 轮唱曲
  In music, aroundis a simple song sung by several people in which each person sings a different part of the song at the same time.
• PHRASE (故事、想法或玩笑)传播，流传，传开
  If a story, idea, or jokeis going the roundsordoing the rounds, a lot of people have heard it and are telling it to other people.
  1. This story was going the rounds 20 years ago.
     20年前，这个故事广为流传。
• PHRASE 到各处去;巡回参观
  If youmake the roundsordo the rounds, you visit a series of different places.
  1. After school, I had picked up Nick and Ted and made the rounds of the dry cleaner and the grocery store...
     放学以后，我接了尼克和特德，然后又去了干洗店和杂货店。
  2. We could do the rounds of the galleries.
     我们可以逐一参观各个画廊。

ADJECTIVE USES 形容词用法

• ADJ-GRADED 圆的;圆形的;球形的
  Something that isroundis shaped like a circle or ball.
  1. She had small feet and hands and a flat, round face.
     她的手脚都很小，脸又扁又圆。
  2. ...the round church known as The New Temple.
     被称为“新教堂”的球形教堂
  3. ...large round loaves dusted with flour.
     撒着面粉的巨大圆面包
• ADJ-GRADED (眼睛)瞪圆的，圆睁的
  If someone hasroundeyes, their eyes are open wide, for example because they are surprised, excited, or afraid.
  1. The boy sucked his thumb and stared at Hebburn with huge, round eyes.
     男孩吮吸着拇指，瞪圆了大眼睛盯着赫本。
• ADJ 整数的，不计尾数的(以10的倍数表示)
  Aroundnumber is a multiple of 10, 100, 1000, and so on. Round numbers are used instead of precise ones to give the general idea of a quantity or proportion.
  1. A million pounds seemed a suitably round number.
     100万英镑看起来是一个比较合适的整数。
  2. The money goes into the team pool, which this summer, in round figures, has now reached £18,000.
     钱都存入小组的集体基金，到今年夏天基金的整数已经达到了18,000英镑。

VERB USES 动词用法

• VERB 绕过;绕行;绕道
  If yourounda place or obstacle, you move in a curve past the edge or corner of it.
  1. The house disappeared from sight as we rounded a corner...
     我们绕过街角就看不到那座房子了。
  2. After rounding Cape Finisterre the boats ride the north-easterly trades.
     绕过菲尼斯特雷角之后，这些船开始在东北信风的吹送下破浪前行。
• VERB 取整;四舍五入
  If youroundan amountupordown, or if yourounditoff, you change it to the nearest whole number or nearest multiple of 10, 100, 1000 and so on.
  1. We needed to do decimals to round up and round down numbers...
     我们得把小数四舍五入成整数。
  2. The fraction was then multiplied by 100 and rounded to the nearest half or whole number...
     然后，分数被乘以100，取整为最接近的半数或整数。
  3. I'll round it off to about £30.
     我将它取整，大约是30英镑。
• See also:rounded

英英释义

noun

• (mathematics) a miscalculation that results from rounding off numbers to a convenient number of decimals
  1. the error in the calculation was attributable to rounding
  2. taxes are rounded off to the nearest dollar but the rounding error is surprisingly small
  Synonym:rounding error

双语例句

• We stopped to pick up the drowning men by rounding up the boat.
  我们把船转为迎风方向停下，救起了那些溺水者。
• But he's actually rounding home plate!
  但他确实是在本垒板附近！
• They were rounding up the Death Eaters, you know.
  你知道，他们当时在围捕食死徒。
• My numbers are extremely rough, with lots of rounding errors and probably other errors as well.
  我计算出的数字极其粗略，有许多舍入误差或许还存在其它一些误差。
• Zooming in can cause some lines to appear incorrectly due to rounding errors in the calculations.
  在放大时，由于计算中要对误差进行舍入，所以某些直线可能看起来不正确。
• This rounding guarantees that the data does not retain any significance greater than the capacity of its type.
  这种舍入保证了数据不会明显超出其类型的容量。
• But when you start doing scientific research or financial work, imprecision and rounding errors start to add up.
  但如果你碰到涉及科学研究，或财政方面的项目时，不精确度，和错误就会累加。
• The rounding to number of seconds is by design.
  四舍五入到多少秒是由设计。
• The number of jobs affected is barely a rounding error in measurements of the mighty American workforce.
  那些所谓的受到影响的工作的数额也仅仅只是美国强大的劳动力军团大约一个误差数额的大小。
• Note: numbers may not add up to the totals owing to rounding.
  注释：由于进位原因，数字加起来可能与总数略有出入。