an eagle flapping its wings 振翅飞翔的鹰
a bird flapping its wings 振翅飞行的鸟
The bird was flapping its wings.
那只鸟拍动着翅膀。
youdao
那只鸟拍了拍翅膀飞走了。
Is every bird flapping its wings at the exact same frequency?
每只鸟会以同样的频率扇动翅膀吗？
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