恐惧是会蔓延的，它会麻痹人们。

Fear is contagious. It paralyzes.

youdao

兴奋是会蔓延的(由实例引入)(38：00)。

Excitement is contagious (Lead by example) (38:00).

youdao

证明了该菌株会蔓延的，但只有轻微的毒性。

The strain proved contagious but only mildly virulent.

youdao

When democracy is invented it will have its moment and it will spread, and there will be numerous democracies but they will never be the majority of the poleis.

当民主的理念提出以后,它会不断的蔓延,会有很多民主制国家,应运而生,然而大多数的城邦却不是民主的

耶鲁公开课 - 古希腊历史简介课程节选

We're going to look to some extent today and mostly next Tuesday at the roots and origins of an anti-slavery ideology, a growing anti-slavery ideology in its many layered forms.

今天讲一部分内容,下周二我们重点会讲到,反奴隶意识形态的根基,那是一个蔓延在许多阶层中的,反奴隶制意识形态

耶鲁公开课 - 美国内战与重建课程节选

But in some cases, that progressions of the disease would start to affect other organs, in addition to your skin, and your body would become overwhelmed with the infection and eventually die.

但在某些情况下,疾病的蔓延,会开始影响其它器官,不仅是皮肤,你的身体在受到感染后全线崩溃,直至死亡

耶鲁公开课 - 生物医学工程探索课程节选