We are or angel with single swing, only when we embrace together canwetly!
我们都是单翼天使，拥抱在一起，才能飞翔。
With a single swing of the sharp weapon, several branches fell from the little bush.
随著锋利的兵器往下一挥，几根树枝从小树上掉落下来。
The swing is a pendulum with a single natural frequency depending on its length.
秋千是只有一个固有频率的摆，此频率决定于它的长度。
The swing is a pendulum with a single natural frequency depending on its length.
秋千是只有一个固有频率的摆，此频率决定于它的长度。
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