| 例句 |
This is no time for the world to let down its guard agaist terrorism.现在不是世界人民可以对恐怖主义放松警惕的时候。You can't let your guard down.你不能放松警惕。A negative test result may give false reassurance.检查结果呈阴性可能会让人放松警惕。We mustn't relax our vigilance for a moment!我们一刻也不能放松警惕！She was not ready to let down her guard and confide in him.她还没有对他放松警惕并加以信任。We couldn't afford to lower our guard until all the security checks had been carried out.各项安全检查没有全部做完以前，我们不能放松警惕。 |