alerter

常見例句

One should not run about aimlessly during an alert.
空襲警報期間不可到處亂跑。
She is always on the alert for some new calamity.
她總是保持警覺以防某種新的災難。
Keep on the alert; we're due for an inspection.
提防著點，輪到檢查我們了。
Be sure to be watchful or alert.
必須留神，千萬要提防。
They have put the army on the alert.
他們已使軍隊進入戒備狀態(tài)。
The alert leopard went up to a deer quietly.
警覺的豹子靜悄悄地走近一只鹿。