对于热衷于骑自行车的普鲁伊特来说，首先要做的是更换他被盗的自行车。

For Pruitt, a keen bicyclist, the first thing to do was replace his stolen bike.

youdao

地震过后，当地政府的首先要做的是为无家可归的家庭提供住处。

After the earthquake, the first thing the local government did was to provide accommodation for the homeless families.

youdao

我想打个比方，当修你的车时，你首先要做的是刹车，关掉引擎。

An analogy I like to think about is that when you're repairing your car, the first thing you do is to stomp it and shut off the engine.

youdao

So, if we want to think about what the first ionization energy is of boron, what you want to do is write out the electron configuration, because then you can think about where it is that the electron's coming out of.

如果我们要考虑,硼的第一电离能，你首先要做的是写出它的电子排布，因为在这之后,你才能知道拿走的是哪里的电子。

麻省理工公开课 - 化学原理课程节选

And I'm going to give it a name, and right now I'm just building but first of all, what does a class do?

尤其是，我要做的是就是，要去做完这里,因此我首先要去建立一个对象，它要代表一个点？

麻省理工公开课 - 计算机科学及编程导论课程节选

The first thing we need to do is write the electron configuration for the atom itself, and then we need to take an electron away.

首先我们要做的是,写出原子的电子排布，然后，我们再拿走一个电子。

麻省理工公开课 - 化学原理课程节选