?劝某人警惕
... be on one's guard 戒备着 put someone on guard 劝某人警惕,让某人提... on one's guard 警惕 ...
劝某人警惕
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。