词汇 | sphincter |
释义 | sphincter noun [ C ] anatomy specialized uk/ˈsfɪŋk.tər/ us/ˈsfɪŋk.tɚ/ 括约肌 a muscle that surrounds an opening in the body and can tighten to close it the anal sphincter 肛门括约肌 a sphincter muscle 括约肌 |
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