A powerful aggressor attacking or dominating a weak, defenseless group; to make havoc among the defenseless.
在这次辩论赛中，经验丰富的辩手对阵初学者，简直是虎入羊群，很快就掌握了全场优势。
In this debate, the experienced debater facing the novices was like a tiger entering a flock of sheep, quickly gaining complete advantage.
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