And he produced a fluid from cowpox lesions, so these were these lesions, these skin lesions on cows.

他生产出一种取自牛痘,即牛皮肤上的瘢痕的液体

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Right. So, he took fluid from a cowpox lesion on a cow, and he injected it into his children and his wife, reasoning that this would protect them from disease, even though they didn't have as much contact with cows as farmers did.

就是这样,他从奶牛身上的,天花瘢痕中取出液体,将之注入他的妻儿体内,认为这样可以保护他们不得天花,即使他们并不像农民一样时时与奶牛接触

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