这位保守的亚利桑那人周遭一片混乱，看到他还能保持冷静并坚持自己的原则是一件颇令人吃惊的事情。

it is stunning to see a conservativeArizonan keep his head and stick to his principles while all around him ischaos.

youdao

其原则在于，在这个过程中学习怎样真正做好一件事，我们要学的是怎样去学习。

The principle is that in the process of learning how to do one thing really well, we learn how to learn.

youdao

通过有系统的思考提前为自己设定好奋斗目标，然后坚定自己的原则，集中精力为一件事情而努力。

You should map out your objective in advance through systematic and analytical thinking, and then stick to your principles and concentrate on one thing.

youdao

And when we make these comparisons, one thing I want to point out is that we need to keep the constant principle quantum number constant, so we're talking about a certain state, so we could talk about the n equals 2 state, or the n equals 3 state.

当我们做这些比较时，我想指出的一件事是,我们需要保持常量原则,保持量子数是常数，所以我们在讨论一个确定的态时，我们可以谈论n等于2的态，或者n等于3的态。

麻省理工公开课 - 化学原理课程节选