Cataracts is a condition that affects the transparency of the lenses.白内障是一种影响晶状体透明性的疾病。In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers.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...
关于厌食的起因存在颇多争论。The causes of anorexia are much debated.以腐肉为食的乌鸦crows feeding on carrion经常看到一只猎食的老虎在村子周围悄悄走动.A marauding tiger was often seen prowling around the village....
The changed outlook entails higher economic growth than was previously assumed.观念的改变势必会使得经济增长高于之前预计的水平。Prue assumed a placatory tone of voice.普吕以一种安慰人的语气说话。The mechanical relays , which have been assumed in Fig . 4 - 9 ,...