1.be essential to 對…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.

但高中畢業后，他意識到要想讀大學或在耶路撒冷找一份不錯的工作，希伯來語是很關鍵的。

2.get in the way 妨礙

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，布萊克沃德兩年內一直在向官員說謊，當老板決定為其升職時，他感到這段戀情會成為阻礙才不得已坦白。

3.trace back 追溯

例句：The rumour was traced back to Tom.

這個謠言追究到湯姆身上。

4.range from 從 ... 到 ... 范圍

例句：The jobs range from advertising sales to engineering.

工作范圍從廣告銷售到工程師。