1、Police are warning the public to be on the alert for suspicious packages.
警方警告公眾要警惕可疑包裹。

2、After the TV news, most of the farmers were on the alert for the disaster.
電視新聞播出后，大多數(shù)的農民對這種災害已經處于警備狀態(tài)。

3、Bird watchers on the alert for a rare species.
看守者人密切注意稀有鳥類

4、STUDY ON THE ALERT MONITOR OF THE LOW-ROTATIONAL-SPEED AXLE IN THE COMBINE
收獲機軸低轉速報警監(jiān)視裝置研究

5、Dogs are always on the alert wherever they go.
無論在什么地方，狗總是處于警覺狀態(tài)。

6、We were constantly on the alert against any surprise attack.
我們時時刻刻都在提防突然襲擊。

7、You should be on the alert to any sudden change in the situation.
你們要對形勢的突變有足夠的準備。

8、Police warned the public to be on the alert for suspected terrorists.
警方警告群眾警惕涉嫌的 * 。

9、Stay on the alert in this case.
這種情況下要保持警惕。

10、The Armies were constantly on the alert not to be taken by surprise.
部隊一直處于警戒狀態(tài)以防突然襲擊。

11、They want to be on the alert for similar buying opportunities.
他們要準備應對類似的購買機會。

12、Her down on the alert and walked into a world of rivers.
她放下了戒備，走進一個血流成河的世界。

13、Drivers must be on the alert for traffic signals.
駕駛員必須密切注意交通信號。

14、Bird watchers on the alert for a rare species
看守者人密切注意稀有鳥類

15、Troops are on the alert against any possible aggression.
軍隊戒備著可能的來犯。

16、They were constantly on the alert not to be taken by surprise.
他們一直處于常備不懈狀態(tài)以防突然襲擊。

on the alert翻譯