2025-11-10 23:01:01 浏览次

sphincter是什么意思 英[ˈsfɪŋktə(r)] 美[ˈsfɪŋktər] n. 括约肌[医] 括约肌n. a ring of muscle that contracts to close an openingsphincter的用法和双语例句1. The internal urethral sphincter automa...