tennis没复数形式,也可以理解为它的复数形式和单数形式一样。

tennis

n.网球

例句：

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。

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。

I would place her among the top five tennis players in the world.

我会把她排在世界五名顶尖网球选手之列。

I play tennis quite a lot in the summer.

我夏天常打网球。