| 释义 |
a.lertHE5lV:t, $-5lV:rtadjquick to see, understand and act in a particular situation警觉的，灵活的Stay / Keep alert or you'll miss the planes when they fly by.留神不要漏掉飞过的飞机。I'm not feeling very alert today--not enough sleep last night!我今天觉得不是很清醒----昨晚没睡够!A couple of alert readers wrote in to the paper pointing out the mistake.几个细心的读者写信给报社，指出错误。We're very alert to (=we understand and give attention to) the dangers of operating a nuclear power station.我们对核电站运行的危险非常警惕。
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