warn；

他事先并未警告，拔枪便打。

Without warning he pulled and fired.

相关介绍

谁要是考试作弊，都要受到警告处分。

Anyone caught cheating in the exam will be given a disciplinary warning.

不要把我的警告当耳边风。

Don’t neglect my warnings. / Don’t throw my warnings to the wind. / Don’t turn a deaf ear to my warnings.

我警告过他有危险，但他还是一意孤行。

I had warned him of the danger, but he was determined to go his own way.

警察给了司机一个警告，然后就放行了。

The policeman let the driver off with a caution.

尽管老师一再警告，可他还是我行我素。

In spite of the teacher’s repeated warnings, he went his own way.

我一而再，再而三地警告过你不要那样做。

I’ve warned you over and over again not to do that.

朋友们几次三番地警告，他都当成耳旁风。

He turned a deaf ear to his friends’repeated warnings.

如果我不警告你的行为有危险，我便失职了。

I would be failing in my duty if I didn’t warn you of the dangers of your action.

周六，总理警告该国经济面临巨大的下行压力。

On Saturday, the Premier warned of ‘huge downward pressure’ on the country’s economy.