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任务型阅读:为什么家鸡飞不高?

作者:TEENS
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TUCHONG

Chickens have wings (翅膀) and feathers (羽毛), but they are not good flyers. They can only fly a few meters.

This is because chickens’ wings are too small, and their flight muscles (飞行肌) are too large and heavy. This makes it hard for them to take off.

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