1.break out 爆发

例句：An epidemic broke out.

一种流行病突然开始流行。

2.ready to 准备

例句：The cat crouched down, ready to spring on the mouse.

那只猫蹲下身来准备向老鼠猛扑过去。

3.return to 返回到

例句：When will you return to the office?

你什么时候回办公室?

4.in support of 支持

例句：They decided to stay in support of the new leadership.

为了支持新的领导班子，他们决定留下来。