chain coccus

例句：

1. 1. The doctor treated the patient with a chain coccus infection.
   医生用链球菌感染治疗了病人。
2. 2. Researchers are studying the effects of chain cocci on human health.
   研究人员正在研究链球菌对人类健康的影响。
3. 3. The patient recovered quickly after receiving treatment with chain cocci antibiotics.
   在接受链球菌抗生素治疗后，患者很快就康复了。