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。
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