But Amy Ramirez and Cheryl Gilman both say foreign students should understand that visa rules change often.

VOA: special.2009.07.02

We'll talk more about this later, but it often happens that when you change your program to solve one problem you break it, and things that used to work don't work.

我们以后会更多的去讨论者一点，但是经常发生的情况是当你因为,一个问题修改你的程序的时候,你修改了程序,但原来没问题的模块。

麻省理工公开课 - 计算机科学及编程导论课程节选

Change often signals danger or opportunity and if we are especially tuned-in to change, it helps us survive ? and it helps us pass along our genes. Okay?

变化通常意味着危险和机遇,如果我们能调整适应变化，我们生存能力更强,并且能传递我们的基因，是不是？

耶鲁公开课 - 心理学导论课程节选

Scientists know that plants and animals often change to be able to live in extreme environments.

VOA: special.2010.01.04

There is account of evidence where people actually do change and we have research showing that people going to therapy very often change as the a result of therapy.

有证据显示,人们的确是会改变的,我们有研究显示，经常接受治疗的人,会容易改变。

哈佛公开课 - 幸福课课程节选