常見例句One should not run about aimlessly during an alert. 空襲警報(bào)期間不可到処亂跑。She nestled her head on his shoulder. 她將頭依偎在他的肩上。She is always on the alert for some new calamity. 她縂是保持警覺以防某種新的災(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,千萬要提防。He headed a crowd off from the wrong exit. 他上前阻止人群從錯(cuò)的出口出去。 返回 alert-headed