例句:Share prices and trading have been dulled by worries over the war.
股票价格和交易因人们对战争的忧虑而走低。

2.college graduate 大学毕业生

例句:Being a Chinese college graduate isn't what it used to be.
中国大学毕业生的处境和他们的前辈大不相同了

3.let alone 更不用说

例句:We fear no death, let alone difficulties.
我们死都不怕，何况困难？

4.at the same time 同时

例句:Are these people using gear and amphetamines at the same time?
这些人同时服用海洛因和安非他明吗？