?丧失警惕
... lower one's guard 丧失警惕 drop one's guard 丧失警惕 get past sb.'s guard 冲破某人的防御(指拳击; 击剑等) ...
?失去警惕
... come off guard下岗 drop one's guard失去警惕 go on guard上岗 ...
To drop one's guard, even for a moment, could prove fatally wrong.
ECONOMIST: I spy...
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。