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暗中射来的箭。比喻不及防备的暗中伤害：明枪易躲，暗箭难防。
(1) [arrow shot from hiding]∶从暗地里射出的箭 (2) [secret activities designed to hurt someone]∶比喻暗中伤人的手段 暗箭难防 暗箭伤人
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