下午6点钟大群大群的人从无数办公楼里蜂拥而出。At six p.m. large groups poured from the numerous offices.门一开，人们蜂拥而出。A stampede broke out when the doors opened.铃声一响, 孩子们蜂拥而出离开了学校.When the bell rang, the children swarmed out of the school....
用些漂白剂漂白这件衬衣.Use some bleach on this shirt.市面上的面粉是经过人工漂白的。Commercial flour is bleached artificially.丝光冲洗水可用作配制洗涤液氯漂白液.Mercerizing wash waters can be used to prepare scour, chlorine bleach....
白内障是一种影响晶状体透明性的疾病。Cataracts is a condition that affects the transparency of the lenses.他是一位曾经动过白内障手术的老人.He is an elderly gentleman who had had a cataract operation.研究表明，即使抽烟不多的人也比不抽烟的人患白内障的概率高出一倍多。In one study, light smo...
雨水过多是亚马逊河与刚果河流域赤道地区的大问题.Too much rain is the problem of the equatorial lands in the Amazon and Congo basins.亚马孙河流域已有40万平方公里的森林遭到滥伐。400,000 square kilometres of the Amazon basin have already been deforested.尼罗河流域一年四季气候温和。...