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- One should not run about aimlessly during an alert. 空襲警報期間不可到處亂跑。
- Nagase Stay alert! They have you on radar. 保持警惕!他們雷達已經苗上你了。
- They picked up the yacht on their radar screen. 他們在雷達屏上看到了那艘遊艇。
- 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。
- The radar scanned the sky for enemy planes. 雷達密切監視天空,搜索敵機。
- The watchtower followed the aircraft by radar. 瞭望塔通過雷達追蹤這架飛機的行蹤。
- They have put the army on the alert. 他們已使軍隊進入戒備狀態。
- Enemy ships were detected on the radar screen. 敵艦的影像已顯現在雷達(屏幕)上。
- The alert leopard went up to a deer quietly. 警覺的豹子靜悄悄地走近一隻鹿。
- An alert listener will have noticed the error. 耳朵尖的人能聽出這個錯。
- The signal was picked up by a downrange radar station. 該信號被試驗飛行方向之內的雷達站收到了。
- A gunboat was detected by the radar. 雷達探測出一炮艇。
- Enemy aircraft were detected by our radar. 敵機被我方雷達發現。
- The ship was provided with radar equipment. 那船裝有雷達設備。
- There are enemy aircraft on the radar screen. 雷達螢屏上出現了敵人的飛機。
- Our radar pinpointed the attacking planes. 我們的雷達確定了來襲敵機的精確方位。
- The district was put on red alert during a terrorist bomb scare. 這個地區在得到恐怖主義者轟炸後作了應急準備。
- Alert to circumstances; attentive. 對周圍環境敏感的; 留心的