Rectal sphincter
[医] 直肠括约肌, 希尔特耳氏括约肌
🧩 词语组成解析
a. 直肠的\\n[医] 直肠的
n. 括约肌\\n[医] 括约肌
🗣️ 情景例句
You seem to have some reservations.
看起来你还有些犹豫。
This part of the country is very mountainous.
国家的这部分有很多的山。
As it is only six feet across, it is barely noticeable.
仅6英尺宽，很难被发现。