而且猪很难被感染，结果实验很凄惨地失败了。

And you can't infect pigs very easily, it turns out, so that failed rather miserably.

youdao

而且猪很难被感染，结果实验很凄惨地失败了。

And you can't infect pigs very easily, it turns out, so that failed rather miserably.

youdao