When I took the job I thought I could change the system, but it's hard.

当我接受这份工作时我以为我能改变这种体制，但太难了。

《柯林斯英汉双解大词典》

I thought I could change him but I was wrong.

我还想我能改变他，但我错了。

youdao

I could change the time on my system, but what a pain!

我可以修改系统时间，但是那实在太痛苦了！

youdao

"And I said to him that those were two easy promises to make because those two things I could not change."

VOA: standard.2009.10.01

I could change my external pressure through the whole process, and that's the path.

事实上外界压强,也不必固定。

麻省理工公开课 - 热力学与动力学课程节选

Because I could've built that in, it says if you change the value of this thing, by the way you need to change recompute those other values in order to make this hold up.

我想要大家通过定义好的方法，来改变实例的值了,因为我可以把这个功能，内置到方法里面去,它的意思就是如果,你改变一个值。

麻省理工公开课 - 计算机科学及编程导论课程节选

You can tell I have an opinion here, but hey, I could change my mind.

FORBES: Jeff Bezos On How To Change Your Mind

So if I could change something, I'd be able to sneak around a little bit more.

WHITEHOUSE: Take Our Daughters and Sons to Work Day 2012

Someone took a Dr. Seuss book and did a clever mockup showing how he and I could change the world.

FORBES: How To Be A Great Sports Agent, Part 2