事实是，在错误的时间拿出手机比打嗝更糟糕，因为这不像其他小过错，查看科技产品是会传染的。

The reality is, taking one's phone out at the wrong time is worse than belching because, unlike other minor offense, checking tech is contagious.

youdao

闲情雅致是会传染的。

The spirit is contagious.

youdao

微笑- - -微笑真的是会传染的。

Smile — it really is contagious!

youdao

If I happen to have some other infectious disease, then not only would you passing the protection to smallpox, but you'd be passing that disease among the population as well.

如果正好还有其他传染病,那不仅会传播对天花的免疫能力,也在人群中传播其它传染病

耶鲁公开课 - 生物医学工程探索课程节选

It's contagious, that is, it's transferred to other persons or objects, depending on how receptive they are--perhaps by physical touch, perhaps in the case of severe impurity by sharing an enclosed space, by being together under an overhanging roof, tent.

它会传染给另一个人，另一个物体，这取决于它们的接受度，也许是通过肢体接触，也许是因为呆在一个与世隔绝的空间里，同在一个屋檐下。

耶鲁公开课 - 旧约导论课程节选

Now, the problem, or one of the challenges with clinical trials of vaccines is that you have to enroll a lot of patients into clinical trials because only a few are going to get sick in any case, only 20 out of 100,000.

现在的问题是,这也是疫苗临床试验的挑战之一,临床试验必须包括足够多的病人,毕竟只有一小部分人会被传染,十万人里面只有二十人被传染

耶鲁公开课 - 生物医学工程探索课程节选