自20世纪40年代以来，疫苗制造商已经在鸡蛋中培养了大量的病毒。

Ever since the 1940s, vaccine makers have grown large batches of virus inside chicken eggs.

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自20世纪40年代以来，疫苗制造商已经在鸡蛋中培养了大量的病毒。

Ever since the 1940s, vaccine makers have grown large batches of virus inside chicken eggs.

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印刷使得低成本大量制造书籍成为了可能，由此极大提高了人们获取书籍的机会，但也减少了人们的选择。

While printing enormously increased access to books by making cheap, high-volume production possible, it also reduced choice.

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Fortunes will begin to be made in the textile industry and in the railroad industry by the '40s and '50s, and in a host of other ways, real fortunes.

在40 50年代的时候,纺织业和铁路工业将会制造大量的财富,另一些方面,真正的机遇

耶鲁公开课 - 美国内战与重建课程节选

Well, if you knew a cell that could serve as a host for a virus, you could use this process of cell culture to make large quantities of virus,right?

如果你知道细胞可以变成病毒的宿主,可以用培养细胞的过程,制造大量病毒,对吧

耶鲁公开课 - 生物医学工程探索课程节选

It turns out in the case of Hepatitis B, the way the lifecycle proceeds-- the cells make too much of the protein and not all of it gets assembled into the virus.

结果显示,在乙肝的病案中,病毒生命周期的发展情况,细胞制造了大量的蛋白质,但并不是所有的蛋白质都会组合成病毒

耶鲁公开课 - 生物医学工程探索课程节选