tennis 没有复数形式。

tennis

n.网球

例句：

I play tennis quite a lot in the summer.

我夏天常打网球。

Lets have a game of table tennis.

咱们来打场乒乓球赛吧。

相关介绍

I like most sports but tennis is my first love.

大多数运动我都喜欢，而网球是我的第一爱好。

I'm not much good at tennis.

我不太擅长打网球。

She was one of the best tennis players of her generation.

她是同辈中最出色的网球运动员之一。