常見(jiàn)例句One should not run about aimlessly during an alert. 空襲警報(bào)期間不可到処亂跑。She is always on the alert for some new calamity. 她縂是保持警覺(jué)以防某種新的災(zāi)難。Keep on the alert; we're due for an inspection. 提防著點(diǎn),輪到檢查我們了。Be sure to be watchful or alert. 必須畱神,千萬(wàn)要提防。I buy him a drink in return for his help. 我請(qǐng)他喝酒以酧謝他的幫助。We look forward to the return of spring. 我們期待著春天的到來(lái)。 返回 return-alert