the river is about to break in the middle of the night.河流將在午夜解凍

be about to:剛要, 即將

The situation was about to boil over.

當時的形勢幾乎到了緊急關頭。

She will be about to write a letter.

她將準備寫信。

Sure enough, the town is put on red alert顯然,小鎮發布紅色預警

red alert:應急狀態(緊急警報)

When the fortress went on red alert, they sealed off the sewers.

當要塞進入紅色警戒狀態,他們就會封鎖下水道。

Following the bomb blast, local hospitals have been put on red alert.

炸彈爆炸之后，當地醫院一直處于戒備狀態。

we're all going to be underwater and possibly get trapped here for a few days.我們都會被淹還可能被困上幾天

get trapped:被困, 陷于

I don't wanna get trapped in here.

我不想被困在這里。

They got trapped in the fire and were killed.

他們被困在火中燒死了。