资方对工人的要求作出反应，答应从四月份起增加工资。

The management reacted to the demand of workers by increasing their wages since April.

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例如，金不会起反应，但是在纳米尺度上它就成为了反应的催化剂。

For example, gold is nonreactive but at the nanoscale it becomes a catalyst for reactions.

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肥胖和超重的人，有更大的可能形成胰岛素抵抗，在这种情况下，细胞不再对胰岛素起反应，不再吸收葡萄糖。

Obese and overweight people, are more likely to develop insulin resistance, a condition in which the cells no longer respond to the hormone and absorb glucose.

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So we can think about something I mentioned last time, which is when we're thinking about chemistry and what's really interesting in terms of chemical reactions, it's mostly valence electrons we're talking about, those are the ones that tend to be involved in chemical reactions.

我们可以考虑一下我上次提到过的一件事，那就是如果我们讨论化学,以及什么是化学反应中,真正令人感兴趣的东西，我们讨论的几乎都是价电子，它们才是在化学反应中,真正起作用的部分。

麻省理工公开课 - 化学原理课程节选

if we have a very electronegative atom within a certain molecule, what you'll actually find is that it does affect how the molecule is going to take place or take part in different chemical or biological reactions.

如果在某个分子中有一个电负性很高的原子，你会发现它确实会影响到,这个分子所起的作用,在不同的化学反应或者生物反应中时。

麻省理工公开课 - 化学原理课程节选