precursor
英 [priˈkɜːsə(r)]
美 [priˈkɜːrsər]
n. 先驱; 先锋; 前身
复数：precursors
Collins.1 / BNC.10361 / COCA.9664
牛津词典
noun
- 先驱；先锋；前身
a person or thing that comes before sb/sth similar and that leads to or influences its development
柯林斯词典
- N-COUNT 先驱；先锋；前身
Aprecursorof something is a similar thing that happened or existed before it, often something which led to the existence or development of that thing.- Real tennis, an ancient precursor of the modern game, originated in the eleventh century...
室内网球，现代网球运动的古老前身，起源于11世纪。 - He said that the deal should not be seen as a precursor to a merger.
他说该笔交易不应该被看作是合并的前兆。
- Real tennis, an ancient precursor of the modern game, originated in the eleventh century...
英英释义
noun
- something that precedes and indicates the approach of something or someone
- a person who goes before or announces the coming of another
- a substance from which another substance is formed (especially by a metabolic reaction)
双语例句
- Based on studies of precursor events and unusual animal behavior, a warning was issued by local authorities.
当地政府根据震前先兆与动物的反常行为，发出了地震预警。 - In plant cells the principal precursor of alanine, as well as leucine and valine, is pyruvate.
植树细胞中丙氨酸和亮氨酸、缬氨酸的主要前体是丙酮酸。 - This is because the active drug ingredient is not dopamine itself but various precursor molecules.
这是因为活性治疗药物成分不是多巴胺本身，而是一些前体药物。 - They alter the way it cleaves amyloid precursor protein.
它们改变了这个酶切割淀粉样蛋白前体的方式。 - Amphetamines is one kind of synthetic compounds whose precursor structure is amphetamine.
苯丙胺类物质是一大类人工合成的以苯丙胺为母体的化合物。 - In this way, it's sort of a precursor to Apple's new GarageBand application.
这样，它成为苹果公司的新GarageBand应用程序的先驱。 - Exogenously supplied aspartate is not an active precursor of asparagine in plant tissues.
外来供给的天门冬氨酸，在植物组织中并不是一个活跃的天门冬酰胺前体。 - Hobbes is a precursor of modern positivism and analytical jurisprudence.
霍布斯是现代实证主义法学和分析法学的先驱。 - This prediction was based on a number of geophysical observations of precursor events as well as abnormal animal behavior.
除了对地震前兆的地球物理现象观察，这次地震的准确预测还要多亏对动物异常活动的观察。 - Provisions on the type, scope, measures and methods for the administration of narcotic drugs, psychotropic drugs and precursor chemicals;
三是规定了麻醉药品、精神药品和易制毒化学品管制的种类、范围、措施和办法。