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(nóng)民對(duì)這種災(zāi)害已經(jīng)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(jī)軸低轉(zhuǎn)速報(bào)警監(jiān)視裝置研究

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

6、We were constantly on the alert against any surprise attack.
我們時(shí)時(shí)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(duì)形勢(shì)的突變有足夠的準(zhǔn)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(duì)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(zhǔn)備應(yīng)對(duì)類似的購(gòu)買機(jī)會(huì)。

12、Her down on the alert and walked into a world of rivers.
她放下了戒備，走進(jìn)一個(gè)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(hào)。

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(duì)戒備著可能的來(lái)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