We must keep the wounded deer alive.

我们必须让那个受伤的鹿活着。

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Predators like the mountain lion and the wolf help to keep the deer herds healthy.

像美洲狮和狼这样的食肉动物就能保持鹿群的健壮。

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Predators like the mountain lion and the wolf help to keep the deer herds healthy.

像美洲狮和狼这样的食肉动物就能保持鹿群的健壮。

youdao