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雷声来得非常快，连捂耳朵都来不及。比喻来势凶猛，使人来不及防备。
[sudden;as sudden as lightening;sudden peal of thunder leaves no time for covering ears] 雷声骤响,来不及捂住耳朵。比喻事情发生得过于突然,使人防不胜防
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