sphineter ani muscles
英
美
- ani n.美洲黑杜鹃abbr.自动号码识别（=automaticnumberidentification）
- muscles n.肌肉名词muscle的复数形式.
- The sphincter muscles of the rectum may also contract a few times at the same intervals as the orgasmic platform.
直肠肛门括约肌可能也像高潮平台一样，以相同的时间间隔收缩数次。
