介绍:

firm abs 马甲线 ab=abdominal腹肌 /æbˈdɑːmɪnl/

It's her dream to have flat firm abs and that's why she goes to the gym everyday.
有平坦的小腹和马甲线是她的梦想，这也是她为什么天天去健身房的原因。

six-pack abs 六块腹肌

The "bicycle" workout will help you get six-pack abs fast.
蹬车的练习可以让你快速练出腹肌。

spot sb. 帮某人扶一下

Can you spot me? I need a spotter. reps（=repetition）个 I did shoulder press for 12 reps at that weight.
用那个重量我做了12个肩推。

Set 组 Do 4 sets of 15 reps.
做4组，每组15个。