why do birds south in the winter?

雨夜逸尘 1年前已收到1个回答举报

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Because in the winter it's much colder in north than that in south, the birds are not used to the cold and they have to fly to the south.
冬天北方比南方寒冷得多,鸟儿们不习惯寒冷的天气,所以不得不飞到南方去.

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是脑筋急转弯

Because they fly much faster and fell less exhausted than they walk 走过去太累太慢。。

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你能帮帮他们吗

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