urinary system infection

例句：

1. 1.He developed a urinary system infection after surgery.
   他在手术后患上了泌尿系统感染。
2. 2. Urinary system infections are common in children and teenagers.
   泌尿系统感染在儿童和青少年中很常见。
3. 3.The patient required immediate treatment for a urinary system infection.
   这位病人需要立即治疗泌尿系统感染。