epitheliumKK [ˏɛpɪˋθiljəm] /ˌɛpɪˈθiljəm/發音名詞1上皮、上皮組織生物、醫學The epithelium lining the intestine renews itself every few days.腸道內壁的上皮組織每隔幾天就會更新一次。