midriff

n.[解]膈,中腹部

腹部；腰腹部；衣服的腰身部分；

名词；

1、She was wearing a tight-fitting top that showed off her midriff.
她穿着一件贴身的上衣，露出了她的腹部。

2、The dancer's costume had a cut-out design at the midriff.
这位舞者的服装在腹部有一个露出来的设计。