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BBC 听力 2016年7月合集

I mean you’ve mentioned alligator numbers, is it a time to start culling them?

你提到了短吻鳄的数量,那现在是时候开始择性宰杀它们了吗?

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双语版 TED-Ed 演

While it may seem counterproductive for members of the same species to eat each other, cannibalism can promote the survival of the species as a whole by reducing competition, culling the weak, and bolstering the strong.

物种互相捕食看起来可能对物种不利,但类相食也可以帮助整个物种的存活,通过减少竞争,消灭弱者,让强者更强大。

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disrupt, disruption, disruptive, disruptiveness, disrupts, diss, dissatisfaction, dissatisfactory, dissatisfied, dissatisfiers,

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