cautioner
n. 担保人；警告者
例句
- I must caution you against the danger. 我必须告诫你应谨防危险。
- Caution is the essence of that man's character. 谨慎是那人性格的本质。
- Haste make work which caution prevent. 匆忙专干不谨慎的事。
- He told us to proceed with caution. 他要我们谨慎行事。
- I would caution against undue optimism. 我奉劝不要过于乐观。
- The only thing to do is to throw caution to the winds. 唯一可做的事情就是不顾一切豁出去。