noun 下载 🔗分享 导管,插管 A small tube inserted into a body cavity to administer a drug, create an opening, distend a passageway, or remove fluid. Examples : "After surgery, the patient needed catheters to drain fluid from their bladder. " 手术后,病人需要使用导尿管来引流膀胱内的液体。 medicine device body organ anatomy physiology technical science 与AI对话词汇游戏阅读练习