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- The sniffer dog, who had achieved fabulous feats for the police, was on high alert and remained prick-eared. 那头曾替警方立下不了汗马功劳的缉毒犬，一直竖起耳朵，保持高度警觉。
- Iraqi security forces are on high alert around Baghdad and in the Sunni heartland north of the capital. 伊拉克安全部队对首都巴格达周边及巴格达北部逊尼派聚集地区高度戒备。
- THE security services in Moscow are on high alert and plain-clothed American security men mingle with Moscow police. 莫斯科安全部门保持高度警惕，身着便衣的美国安全人员同莫斯科警方混杂在一起。
- Los Angeles Police Department Chief Bratton wrote in an op-ed piece published in a paper recently saying that the US should be on high alert for terror. 美国洛杉矶警署首席警官布拉顿最近在一家报纸发表评论指出，美国应当高度戒备恐怖袭击。
- The RCL announcement said that “the magnitude is continuing to climb, and the earthquakes are abnormally frequent” and asked all relevant regions to be on high alert. 省革委会通告说“震级正在上升，地震活动异常频繁”，要求所有有关地区高度警觉。
- Our military is on high alert status. 我们的军队处于高度戒备状态。
- North Korea's neighbors have been on high alert since Pyongyang's nuclear weapons test October ninth, and world leaders have been working strenuously to pursuade North Korea back to six-party talks. 自从北韩10月9号进行核试验以后，北韩的邻国一直处以高度警惕状态，世界各国领导人一直在努力说服北韩重返核问题六方会谈。
- Countries east of Iran, like Afghanistan, India, Pakistan, Turkmenistan, Uzbekistan and Kazakhstan, all major wheat producers, are most threatened by the fungus and should be on high alert, FAO said. 伊朗东部的国家;想阿富汗;印度;巴基斯坦;土库曼斯坦;乌兹别克斯坦;所有这些以小麦种植为主的国家;都将受到这种细菌的严重威胁而必须保持极高的警惕;FAO说道.
- The researchers reasoned that the body and mind are on higher alert when they're in avoidance mode.So they put that theory to the test by studying 38 students at Radboud University Nijmegen. 他们对“移动方式”所产生的作用很感兴趣，比如朝向某物走或将某物拉向自己，以及“回避”行为（如远离某物）都会产生一定的心理作用。
- As Blum says of the current face of ageing, "I think it puts women on high alert all the time. 就像布卢姆说的“我认为老龄化使妇女一直处于高度紧张状态。
- To make the attack as strong as possible, doctors add a substance to put the immune system on high alert. 为了让这个连接尽可能紧密，医学博士们加入了一种可以让免疫系统处于高灵敏状态的物质。
- Cities across India have been put on high alert after 17 explosions in Ahmedabad on Saturday. 周六在艾哈迈达巴德发生了17次爆炸后，印度的城市进入了高度戒备的状态。
- The U.S. military went on highest alert after the 9/11 terrorist attacks. 911恐怖袭击发生后，美国军方进入最高戒备。
- Being on high storey, he composes to twaddle his sad story. 少年不知愁滋味，爱上层楼。爱上层楼，为赋新词强说愁。
- The Immigration and Naturalization Service went on highest alert along the U.S. borders with Canada and Mexico. 移民据密切关注美-加拿大和美-墨西哥边境.
- You may need to be on higher ground in order to identify landmarks such as streams and ridges. 你或许应该尽量站在高处，以辨认诸如小溪及山脊等地标。
- Our Department went on high alert following an outbreak of dengue fever, and a territory-wide anti-mosquito campaign was quickly put into action. 在登革热刚出现之际,本署即提高警觉,迅速推行全港灭蚊运动。
- People seeking the truth from such broadcasts must, Horsey suggests, listen with all their critical faculties on high alert. 对于那些想从这类广播中得到真实情况的人们,霍尔西建议,一定要高度警惕,充分运用自己的评判能力来收看。
- He and his wife seem to be on the outs these days. 他和他的妻子最近似乎感情很不好。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
