In your pelvis area, there exists a set of muscles, known as the Pubococcygeus (PC) muscles.

在你的肾盂附近，存在着一组被称为耻尾肌的肌肉(即pc肌)。

youdao

In your pelvis area, there exists a set of muscles, known as the Pubococcygeus (PC) muscles.

在你的肾盂附近，存在着一组被称为耻尾肌的肌肉(即pc肌)。

youdao