常見(jiàn)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.躰內(nèi)異物通常存積於胃部，因爲(wèi)異物難以通過(guò)幽門(mén)括約肌進(jìn)入空腸。 返回 pyloric sphincter