urinary system

例句：

1. 1.The doctor advised him to take a rest and drink plenty of water to help his urinary system recover.
   医生建议他休息并多喝水来帮助他的泌尿系统恢复。
2. 2.The patient's urinary system was severely damaged due to the accident.
   由于事故，患者的泌尿系统严重受损。
3. 3.Urinary system infections are common in children, especially those with weak immune systems.
   泌尿系统感染在儿童中很常见，尤其是免疫系统较弱的儿童。