在以后的研究中，静脉内接种了2株链球菌的12头猪，其中11头发生了关节炎。

In later work, 11 of 12 pigs inoculated intravenously with 2 strains of the organism developed arthritis.

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在以后的研究中，静脉内接种了2株链球菌的12头猪，其中11头发生了关节炎。

In later work, 11 of 12 pigs inoculated intravenously with 2 strains of the organism developed arthritis.

youdao