warn是什么词性

词性: ；

vt. 警告，提醒；通知

vi. 发出警告，发出预告It seems only right to warn you of the risk.

似乎应该警告你有风险。

I tried to warn him， but he wouldn'；t listen.

我设法提醒过他，可他就是不听。

Lawrence kept on butting me but the referee did not warn him.

劳伦斯不断用头撞我，可裁判没有警告他。