Her underhand serve was more powerful than others'.

她的下手发球比其他队员都要有力。

youdao

There are three basic kinds of the underhand serve the overhand serve and the hook serve or roundhouse serve.

有三种基本的发球方法：下手发球，上手发球和钩手发球或大力（抡臂）钩手发球。

youdao

For beginners, I recommend the underhand serve. For experienced players I recommend the overhand floater serve.

对初学者来说，我建议发下手球，对有一定训练经验的我建议发上手飘球。

youdao