epitheliumKK [ˏɛpɪˋθiljəm] /ˌɛpɪˈθiljəm/发音名词1上皮、上皮组织生物、医学The epithelium lining the intestine renews itself every few days.肠道内壁的上皮组织每隔几天就会更新一次。用这个字练口说→