1.be essential to 对…必不可少的

例句：But after graduating high school, he realized Hebrew would be essential to entering a university or landing a good job in Jerusalem.

但高中毕业后，他意识到要想读大学或在耶路撒冷找一份不错的工作，希伯来语是很关键的。

2.get in the way 妨碍

例句：But he said Blackard lied to officials for two years and confessed only after his boss offered him a promotion and he realized his affair would get in the way.

但是他指出，布莱克沃德两年内一直在向官员说谎，当老板决定为其升职时，他感到这段恋情会成为阻碍才不得已坦白。

3.trace back 追溯

例句：The rumour was traced back to Tom.

这个谣言追究到汤姆身上。

4.range from 从 ... 到 ... 范围

例句：The jobs range from advertising sales to engineering.

工作范围从广告销售到工程师。