shippings英美(shipping 的复数) n. 装运, 航行, 船舶, 船舶吨数[经] 装运, 运送, 海运shipping的复数经济双语例句Economic development and domestic shippings经济发展与国内水运The Study on Shippings 'Oil Spill Risk Assessment and Measures on Sea海域船舶溢油风险综合评价及对策研究