Yes, if you are going to do that, I would say you are probably will be the first.
嗯,这样说的话,你可能真的是第一人。
I think the smallpox vaccine we made now would probably be better, more effective, and safer than the vaccines we made in the '50s.
我相信若我们现在制造天花疫苗,应该会比五十年代的更有效更安全
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