短语词组用作名词 (n.)动词+~give sb a caution 给某人一个警告形容词+~necessary caution 必要的谨慎用作动词 (v.)~+名词caution the prisoner 警告那个囚犯~+介词caution about sth 就某事警告caution about the speed 注意车速caution against doing sth 警告(某人)不要做某事caution against the danger 谨防危险短语 返回 cautions