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Many species died out during evolution, but there are still some of them in existence now.
许多物种都在进化中相继消亡, 但依然有一些物种瓜瓞绵延至今.
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Many species died out during evolution, but there are still some of them in existence now.
许多物种都在进化中相继消亡, 但依然有一些物种瓜瓞绵延至今.
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