caution
单词辨析：
指针对有潜在危险、困难等的事物提出警告，含劝告某人小心行事的意味。
They cautioned him against acting recklessly on the journey.
他们提醒他路上不要莽撞行事。
I'd caution you against undue optimism.
我奉劝你不要过于乐观。
语气较强，主要指对重要问题提出劝告、建议等。
His lawyer counselled him to do nothing.
他的律师劝告他什么也不要做。
The representatives were wise to counsel caution about miliary intervention.
代表们提出进行军事干预要慎重，这是很明智的。
Why did she counsel them to accept the settlement?
为什么她建议他们接受那个方案？
指对确实存在的危险、麻烦等予以警告，比 caution 语气更强，尤强调后果。
He warned her not to walk home alone.
他告诫她不要独自步行回家。
The police warned them not to go out at night.
警察告诫他们夜间不要出门。
He warned the tourists against pickpockets.
他提醒游客要提防小偷。
相关例句：
I threw caution to the wind and rode as fast as I could.
我不顾一切，骑得飞快。
In a word, the trained sagacity and untiring caution of himself were all he had to rely on, amid the critical risks he unavoidably ran.
总之，在他所冒的不可避免的危险中，他除了自己那训练有素的机警和不懈的谨慎以外是一无所恃的。
There is no need for such caution.
不必如此小心谨慎。
He cautioned that opposition attacks on the ruling party would not further political co-operation.
他告诫说，反对派对执政党的攻击并不能增进政治合作。
Detectives threw aside professional training and caution, and looked for a different explanation
侦探们将受过的专业训练和小心谨慎抛之脑后，开始寻求另一种解释。
Keegan and company approached the game with understandable caution.
基根一伙人小心谨慎地对待这场比赛，这是可以理解的。