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来源:雅诚德英语网
Pneumococcal disease is caused by infection with the Streptococcus pneumoniae bacterium.
肺炎球菌病是感染肺炎链球菌引起的。
Pneumococcal disease is caused by infection with the Streptococcus pneumoniae bacterium.
肺炎球菌病是感染肺炎链球菌引起的。