be very alert
网络释义
be very aware or alert 非常机警或警觉
双语例句原声例句权威例句
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You have to be very alert when you are at your most vulnerable, especially when you are depressed or feeling isolated.
在你最容易受到伤害的时候，你必须非常警惕，尤其是当你感到孤独的时候。
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The rabbit seems to be very alert all its life.
兔子似乎一生都小心翼翼，十分警觉。
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The rabbIt 'seems to be very alert all its life.
兔子似乎一生都小心翼翼，十分警觉。
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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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