Treatment sometimes involves removing the large intestine including the rectum.
治疗往往要去掉大肠,其中包括直肠.
📖 牛津释义
rectum
n
(pl ~s or recta) (anatomy 解) lower end of the large intestine, through which solid waste passes to the anus 直肠. =>illus at digestive 见 digestive 插图.