你已经改变，你的时代也结束了。

You've got to change. Your era has ended.

youdao

我想让你知道，你已经改变了我。

I want you to know that you've changed me.

youdao

但是你已经改变主意。

But you've changed your mind now.

youdao

Come on down. Your role has just been changed because you're not wearing any socks today.

过来吧，你的角色刚刚已经改变了,因为你今天没有穿袜子。

哈佛公开课 - 计算机科学课程节选