nephritis

例句：

1. 1. He developed a kidney infection that required immediate medical attention.
   他患上了肾脏感染，需要立即就医。
2. 2. The patient was diagnosed with nephritis and treated with antibiotics.
   患者被诊断出患有肾炎，并接受了抗生素治疗。
3. 3.Nephritis is a serious condition that can lead to kidney failure if left untreated.
   肾炎是一种严重的疾病，如果不及时治疗可能会导致肾功能衰竭。