systemic infection

例句：

1. 1. The patient wasdiagnosed with a systemic infection.
   病人被诊断出患有系统性感染。
2. 2. Symptoms of asystemic infection can be severeand require immediate medical attention.
   系统性感染的症状可能严重，需要立即就医。
3. 3. Doctors often recommend antibiotics for treating systemic infections.
   医生通常推荐抗生素来治疗系统性感染。