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 : "The nurse inserted a catheter to drain urine from the patient's bladder. " 护士插入了一根导尿管,以便将病人膀胱里的尿液引流出来。 medicine device body physiology organ anatomy technical 与AI对话词汇游戏阅读练习