篮球在训练时在球场上快速弹跳。

篮球在训练时在球场上快速弹跳。

The basketball is bouncing rapidly on the court during practice.

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The basketball is bouncing rapidly on the court during practice.

bouncing 是动词 bounce 的现在分词形式,bounce 的意思是“弹跳、反弹”,指物体撞击表面后弹回的动作。

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