Police are warning the public to be on the alert for suspicious packages.
警方警告公众要警惕可疑包裹。
They want to be on the alert for similar buying opportunities.
他们要准备应对类似的购买机会。
All the St. Louis hospitals are on red alert.
所有的圣路易斯医院都拉响了紧急警报。
The key to staying alert and awake on the job is to keep your chi moving.
在工作中，保持警觉和清醒的关键是让你的“气”运动。
The second alert was sounded at 6:43 pm, and the blaze was discovered on the roof.
第二次警报在下午6点43分响起，大火是在屋顶上发现的。
It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the system's event log.
它对我们逮了个正着，向我的智能手机发送了警报，还在系统里的事件日志中列出了我们的射频干扰。
More than 5 000 troops have been placed on (full) alert.
5 000多名士兵已处于（全面）戒备状态。
Troops in the Philippines have been put on full alert in anticipation of trouble during a planned general strike.
预期在计划的总罢工期间会有麻烦，在菲律宾的军队已处于完全戒备状态。
The armed forces were on high alert to guard against any retaliation.
武装部队保持高度警惕，以防发生任何报复行为。
Following the bomb blast, local hospitals have been put on red alert.
炸弹爆炸之后，当地医院一直处于戒备状态。
When that is failed, they stop the hunters, banging on pots and pans to alert the deer.
当这一切都失败后，他们就会阻止猎人，敲打锅碗瓢盆来警告鹿。
Paris prosecutor Remy Heitz said that an initial fire alert was sounded at 6:20 pm on Monday evening but no fire was found.
巴黎检察官雷米·海茨表示，周一晚上6:20分，警方首次发出了火灾警报，但没有发现火情。
They were constantly on the alert not to be taken by surprise.
他们一直处于常备不懈状态以防突然袭击。
A bad or unidentified smell can 'make us go on alert, distract us from what we're doing and change our mood,' usually for the worse, she says.
她说，一种坏味道或是来历不明的味道有可能引起人们的警觉，让人分心，并改变人的情绪，通常都是让情绪变得更糟糕。
Stephane Lhomme, a spokesman for the French anti-nuclear group Sortir du Nucleaire, said its network of activists was on alert for any signs of radioactive leaks near French shores.
StephaneLhomme是法国反核武器集团Sortir du Nuclearie发言人。 他说，它们的成员正在对法国海岸任何的辐射泄露保持高度警惕。
More than 80,000 soldiers and nearly 400,000 police and paramilitary forces are on alert to provide security for the polls.
八万多名士兵和近40万名警察及准军事人员已经处于戒备状态，准备为选举提供安全保障。
More than 80, 000 soldiers and nearly 400, 000 police and paramilitary forces are on alert to provide security for the polls.
八万多名士兵和近40万名警察及准军事人员已经处于戒备状态，准备为选举提供安全保障。
South Korea is on alert for many types of potential disruptions when it hosts global leaders next week for a key economic summit.
韩国下星期主办20国集团峰会之前，为防范各种潜在扰乱因素而进入戒备。
Several Southern California beaches were put on alert, including Huntington beach and Laguna beach. According to a piece in the Los Angeles times.
南加州的几个海滩，包括亨廷顿海滩和拉古纳海滩，已进入警戒状态。
But I insist that the virus is still present, that we need to remain on alert and the resumption of activities will be little by little, not all at once.
但是我坚信流感现在仍然活跃，我们需要继续提高警惕，病毒的反扑是一点一点体现出的，而不是一下子爆发。
We have informed the airport to be on alert as the ash is quite high this time.
克里斯蒂安托说：“我们已经通知机场时刻警惕，因为火山灰现在已经上升到高空。
Doctors baffled by an unexplained rash on people's ears or cheeks should be on alert for a skin allergy caused by too much mobile phone use, the British Association of Dermatologists said.
英国皮肤科医师协会称，医生们在发现患者耳部或两颊出现无法解释其原因的皮疹时应当注意，那可能是由于过度使用手机而造成的皮肤过敏。
Your epidemiologists are on the spot to investigate rumours or facts and put the regional and head office on alert, or in a position to reassure the rest of the world.
国家办事处的流行病学家可以立即针对谣言或事实进行调查，警示区域办事处和总部，或消除世界其它地区的忧虑。
At the same time, we should stay on alert against any possible adverse impact of the stimulus measures, the potential risk of inflation in particular.
与此同时，我们应该对刺激措施可能产生的负面影响尤其是潜在通胀风险保持警惕。
Bangalore, and southern Indian's Madras near Mumbai, have also been put on alert.
班加罗尔和孟买附近的南印度的马德拉斯也已经进入戒备状态。
Several Southern California beaches were put on alert, including Huntington beach and Laguna beach.
南加州的几个海滩，包括亨廷顿海滩和拉古纳海滩，已进入警戒状态。
Whenever a film shows a close-up of a big animal like a bear, Palmer says, the viewer should be on alert: Chances are high that the animal came from a game farm or has been trained.
如果看到大型动物特写镜头的影片，比如熊，那么观众该注意了，很可能这些动物是饲养园里的或者曾受过训练。
Residents living near Warsak Dam on the outskirts of Peshawar in northwestern Khyber-Pakhtunkhwa province were put on alert as water levels rose.
位于巴基斯坦西北部开伯尔-普赫图赫瓦省白沙瓦郊区的沃尔瑟格大坝的水位不断上升，大坝附近居民处于戒备状态。
Move often often unexpected bodily harm, therefore should insist on alert from time to time.
搬家常常常会出现意外的人身危害，因而应不时坚持警惕。
Move often often unexpected bodily harm, therefore should insist on alert from time to time.
搬家常常常会出现意外的人身危害，因而应不时坚持警惕。
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