noun 下载 🔗分享 直肠, 肛肠 The terminal part of the large intestine through which feces pass after exiting the colon. Examples : "After the meal, the child experienced discomfort in their rectum. " 饭后,那个孩子感到直肠不舒服。 anatomy organ body medicine physiology 与AI对话词汇游戏阅读练习