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1.用棍棒从暗处猛击行人夺取财物。 2.比喻乘人不备,给人以沉重打击。
[rob a victim after beating him unconscious with a club;give a staggering blow] 乘人不备,用棍打昏,掠夺财物。比喻攻击别人且使人无法申辩