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地球上,除了人类以外,动物界也经常发生大大小小的决斗。它们奉行着自己独特的决斗准则,每一位参加决斗的角逐者都不得违背。
On earth, in addition to human beings, the animal kingdoms often make big and small duels. They adheres to their own unique rules of duel, and every contender who participates in the duel must not disobey it.