小学一年级英语作文：flying birds

发布时间：2016-03-02 编辑：查字典英语网小编

　　Birds dont fly high up in the sky. The air is too thin.

　　It is hard for birds to breathe in thin air. Thin air doesnt hold them up.

　　Birds fly near the ground so that they can see where they are. The birds look for places they know. Then they do not get lost. Some birds fly so low over the ocean that the waves often hide them. Many birds fly a long distance in the spring and autumn.

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