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撼:摇动。蚍蜉:大蚂蚁。想把大树摇动的大蚂蚁。比喻自不量力者。
[an ant trying to shake a tree-ridiculously overrating oneself] 蚍蜉:一种大蚂蚁。蚍蜉想摇动大树。比喻不自量力者