Some people react badly to products like perfume, even if they have a pleasant smell.

VOA: special.2010.03.30

This is 2pz atomic orbital plus 2pz atomic orbital, and they react to form something that smears in this manner.

这是2pz原子轨道与2pz原子轨道作用，他们按照这样的方式互相作用形成了一些东西,虽然还带一点拖尾效应。

麻省理工公开课 - 固态化学导论课程节选

How did they react to the powerful Roman Empire?

对强大的罗马帝国的态度？

耶鲁公开课 - 新约课程节选

I think the way that they might react to his presence-we'll see how that is-probably a positive reaction, should resonate in the Arab media, and that should be positive,"

VOA: standard.2009.05.09

I've got to find them by experimenting, by putting other bodies and seeing how they react and then finding out what's the force that acts on a body when it's placed in this or that situation.

我得通过实验找出这些力,我会增加其它物体,观察其反应,求出当它处在这种或者那种情况下时,作用在物体上的力

耶鲁公开课 - 基础物理课程节选

A lot of the examples that we're going to give you in terms of trying out your Lewis structures will be molecule that are used in organic synthesis, or maybe they're molecules that react in interesting ways with biomolecules in your body or proteins in your body.

很多我们将要用来,训练路易斯结构的例子,都是在有机合成中用到的分子，也有可能是那些在你体内的生物分子,或者蛋白质中发生有趣反应的分子。

麻省理工公开课 - 化学原理课程节选

That also encouraged me to really write more and to really think about what is the story, how are people coming to this and like when I show my friends this, how are they going to react.

这也鼓励我编写更多东西,并且真正思考这个故事是什么，思考人们怎么想它,比如我向我的朋友展示的时候，他们会怎么反应。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

How did they react to the politics?

对政治的态度？

耶鲁公开课 - 新约课程节选