But change happens.

但是改变正在发生。

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But when something like this happens on your watch, there's no way it can't change you.

但是当你眼睁睁地看着这一切发生，你不可能不被改变，你的世界观不可能不被改变。

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Change itself isn't bad, but uncontrolled change — where the impact is not measured before it happens — can be detrimental to the success of a project.

变化本身不是坏事，但是不受控制的变化(影响在发生之前无法测量)对于项目的成功则是有害的。

youdao

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

But sometimes, meaningful change happens in a relatively short period of time.

WHITEHOUSE: Our Top Stories

Well, Lords reform has always been defeated by those passionately opposed to change finding a way to vote with those passionately in favour of change but opposed to whatever plan happens to be on the table at the time.

BBC: Lords reform simple? Never

But it does mean recognising change when it happens.

BBC: NEWS | UK | Politics | Blair's speech in Lisbon