1.by and large 大體而言

By and large, these people are peace-loving, law-abiding citizens.

大體來看，這些人都是熱愛和平，遵紀守法的好公民T9nY4M=cXT_V7~kv[O;。

2.on the sidelines 觀望

We realize how critical it is to get involved right now and not sit on the sidelines.

我們意識到，現在必須行動起來，不能再袖手旁觀了q2ez[lnfI~5i)。

3.cast doubt on 引起……對……的懷疑

There are factors, however, that have cast doubt on the statue's authenticity.

然而，有些因素已經讓人們對這座雕像的真實性產生了懷疑|+-_6RL;tSYO4。

4.on the line 處于危險之中

Firefighters do a job that sometimes requires them to put their lives on the line.

消防員們經常都是冒著生命在執行任務的i1]I27,_sm8]3b0_。