告诫,当心,提防 advise sb to avoid sb/sth or doing sth
warn sb against sb/sth/v-ing
He warned me against pickpockets.
他警告我提防扒手。
The doctor warned the patient against smoking.
医生告诫病人不要吸烟。
They warned him against swimming in that part of the river.
他们告诫他不要在这一带河里游泳。
She warned me against being overconfident.
她告诫过我不要过于自信。
I was once warned against him.
曾经有人警告我要提防他。
I've been warned against that company, so I'll take a job somewhere else.
我曾被告诫要提防那个公司,因此我将在别处找工作。
He was warned against trying to get through here.
有人警告过他,不要想从这里通过。
Have they been warned against doing that?
有人告诫过他们别这样做吗?