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- Her fears had always been on the alert for an upheaval. 她日夜提心吊胆，严防突变。
- Drivers must be on the alert for traffic signals. 司机必须注意交通信号。
- If you believe in a cause, speak up for it; don't always be on the defensive. 如果你信仰一种事业的话，你就大胆为之辩护，不要总是处于守势。
- Troops are on the alert against any possible aggression. 军队戒备着可能的来犯。
- I'm not going to throw you over. I've always been on the square with you. 我不会抛弃你，我对你一向是诚心诚意的。
- The city must be on the alert for being polluted. 城市要防止污染。
- You should be on the alert to any sudden change in the situation. 你们要对形势的突变有足够的准备。
- They did their best to keep on their guard (be on the alert). 他们尽量保持警惕。
- She is always on the alert for some new calamity. 她总是保持警觉以防某种新的灾难。
- Every country that advocates peace must be on the alert. 每一个主张和平的国家都必须提高警惕。
- The public should be on the alert during thunderstorms. 市民对雷暴必须提高警觉。
- Passengers on buses should be on the alert against pick-pockets. 公共汽车上的乘客应提防扒手。
- Always be on the watch against any attempts to cheat you. 要时刻提防人家的欺骗。
- Old Jolyon was on the alert at once. 老乔里恩立刻警觉起来。
- If you believe in a cause,speak up for it; don't always be on the defensive. 如果你信仰一种事业的话，你就大胆为之辩护，不要总是处于守势。
- Large enemy forces were on the move; so we must be in the alert. 大批敌军在行动，因此我们必须提防着。
- If you believe in a cause, speak upfor it; don't always be on the defensive. 如果你信仰一种事业的话,你就大胆为之辩护,不要总是处于守势。
- Police warned the public to be on the alert for suspected terrorists. 警方警告群众警惕涉嫌的恐怖分子。
- Always be on the lookout for opportunities to learn and improve your skills. 要时刻留意学习和提升自己技能的机会。
- Keep on the alert; we're due for an inspection. 提防着点，轮到检查我们了。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
