常見例句One should not run about aimlessly during an alert. 空襲警報(bào)期間不可到處亂跑。She is always on the alert for some new calamity. 她總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. 必須留神,千萬要提防。I buy him a drink in return for his help. 我請他喝酒以酬謝他的幫助。We look forward to the return of spring. 我們期待著春天的到來。 返回 return-alert