警惕的
adj. vigilant ; alert ; Argus-eyed
双语例句原声例句
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一个警惕的声音说：“谁在那里？”
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扒手需要放松警惕的目标。
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尽管总体上看，这种对癌症警惕的持续观察是一件好事，但研究人员越来越怀疑，是否所有这些检查对老年人来说都是必要的。
While such vigilant tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly.
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Because it's a very intense job they have to be alert every moment.
因为是高度集中的工作,他们需要时刻保持警惕。
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This is more alarming then you could ever imagine.
这比你能想像的要更加值得警惕
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