And this is what's characteristic of smallpox, is that as the virus spreads through your body, it particularly, it particularly affects cells of your skin.

这是天花的特征,当病毒传遍全身时,它特别的,特别地作用于皮肤细胞

耶鲁公开课 - 生物医学工程探索课程节选

You breathe it in, it infects the cells of your respiratory tract, and the virus begins to reproduce, and then it spreads throughout your body.

你将之吸入,病原体感染了呼吸道细胞,病毒开始繁殖,接着传遍你的全身

耶鲁公开课 - 生物医学工程探索课程节选

It spread throughout the world--the idea of quoting probabilities.

引用概率的这种表述方式很快传遍世界

耶鲁公开课 - 金融市场课程节选