They basically make many, many copies of their DNA and they make all of their viral proteins and they assemble into new viral units.

它们会生成不计其数的病毒基因拷贝,并翻译生成病毒蛋白,组装成新的病毒单位

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What the cold virus does is evolve different strategies to cause it to reproduce.

感冒病毒进化成不同物种,使之得以繁衍。

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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