The essence of being a scientist is you don't say 'I've got all the answers, that's it, end of story…' I keep changing my mind about things.

作为一个科学家的本质是你不会说‘我已经有所有的答案，这就是了，故事的尾声。’我不停对事情改变我的主意。

youdao

I had to keep changing the angle every time she leaned over to talk to him, or he leaned over to kiss her.

每次她俯身跟他说话，或者他俯身吻她的时候，我都得不停地变换角度。

youdao

"I know this is hard on you," his mother said as he got ready for school this morning," and I'm really sorry you have to keep changing schools."

“我知道这对你来说很难，”今天早上他准备上学时，妈妈对他说：“我真的抱歉，你得不断换学校。”

youdao

So, keep that in mind when we're talking about atomic radius, I'm not suddenly changing my story and saying, yes, we do have a distinct radius.

因此，当我们讨论原子半径的时候要时刻记住这一点，我并不是在突然改变自己的说法，说是的，我们的确有一个准确的半径。

麻省理工公开课 - 化学原理课程节选

"I try to keep the colors consistent instead of jumping all over or changing all the time, " Mr. Gurdon says.

WSJ: Lighting Designer Al Gurdon: The Light Master of Super Bowl Halftime