He is in the gym.

他在健身房。

I sometimes play football or exercise in the gym.

我有时踢足球或在健身房锻炼。

Doctors say five minutes of laughing is as good for you as fifteen minutes in the gym!

医生说五分钟的笑对你来说和在健身房锻炼十五分钟一样好！

She likes to run in the gym.

她喜欢在健身房里跑步。

He can lift 100 kilos in the gym.

他在健身房可以举起100公斤。

They added more barbells in the gym.

他们在健身房里增加了更多的杠铃。

They practice wrestle in the gym class.

他们在体育课上练习角斗。

The jock spent hours in the gym every day.

这个爱好体育的人每天在健身房花费数小时。

They use dumbbells for training in the gym.

他们在健身房里使用哑铃进行训练。

They installed a new squash court in the gym.

他们在健身房安装了一个新的壁球场。