Sphincter muscle
括约肌
🧩 词语组成解析
n. 括约肌\\n[医] 括约肌
🗣️ 情景例句
I beg you pardon?
对不起，你说什么？
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
Let me see. Oh dear! Yes, it is broken.
让我看看，天哪！是坏了。