瞧见了没？我没说错吧。这就是我没早说的原因，就知道你们会弄错的。

You see? There you go. That's why I didn't mention it earlier. I knew you'd take it the wrong way.

《柯林斯英汉双解大词典》

这就是我早早离去的原因。

That's why I left so early.

《牛津词典》

这就是为什么你这么反对别人抽烟的原因。

That's why you're so anti other people smoking.

《柯林斯英汉双解大词典》

And the reason that this should be so fast is we already did all the calculations for the formal charges.

这应该很快就能做出来的原因是,我们已经做完了关于形式电荷的所有计算。

麻省理工公开课 - 化学原理课程节选

OK, the reason I'm saying this is, we have one class definition, is a cookie cutter, it's a template that's going to let us build versions of these things.

同一实例，好，我为什么要说这个的原因是，我们学习了类的定义了，这就像曲奇成型刀一样,它是个让我们建立不同版本的,这些东西的一个模板。

麻省理工公开课 - 计算机科学及编程导论课程节选

The reason it's aluminum is because aluminum has a lower z effective, so it's not being pulled in as tightly by the nucleus, and if it's not being pulled in as tightly, you're going to have to put in less energy in order to ionize it, so that's why it's actually going to have the smaller ionization energy.

原因是,铝的有效核电量更少，所以没有被原子核束缚得更紧，而如果没有被束缚得更紧，你为了电离它所需要注入的能量也就更少，这就是,它的电离能会更低的原因。

麻省理工公开课 - 化学原理课程节选