I have here a tennis ball and I can bounce this tennis ball, I can throw it down.

我这里有个网球，要是把它对着地面扔，它会弹起来。

youdao

I have here a tennis ball and I can bounce this tennis ball, I can throw it down.

我这里有个网球，要是把它对着地面扔，它会弹起来。

youdao