同根派生 pyloric sphincter相關(guān)詞英漢例句Foreign bodies most commonly become lodged in the stomach because of the inability to pass through the pyloric sphincter, and in the jejunum.體內(nèi)異物通常存積于胃部，因為異物難以通過幽門括約肌進入空腸。pyloric sphincter更多例句