I hit the gym basically everyday.

我几乎每天都去健身房。

Working-out keeps me fit and vigorous.

健身让我健康有活力。

Warm-up is a daily routine before lifting.

热身是每天举铁前的惯例

Stretch prevents you from injuries.

拉伸可以防止受伤。

Could you spot me for a while?

你能看护我一下吗?

I'm doing biceps and back today.

我今天练二头肌跟背部。

Squat is painful yet it gives you nice ass.

深蹲很痛苦但是能给你翘臀。

Running the treadmill is boring for me.

跑步机对我来说太无聊。

I have two more reps to finish up.

我还有两组就做完。

Giving up isn't an option for me.

我的字典里没有放弃。