"Having passed reform bills in both the House and the Senate we now to have to take up the last and most important step and reach an agreement on a final reform bill that I can sign into law,".

VOA: standard.2009.12.25

So, what we say here is we need to take a step back here and come up with an approximation that's going to allow us to think about using the Schrodinger equation when we're not just talking about hydrogen or one electron, but when we have these multi-electron atoms.

所有我们这里要说的是,我们需要退回一步,做一个近似,那样可以使我们用,薛定谔方程来考虑,让我们不是仅仅在讨论氢原子或者,一个电子的时候，而是多个电子的原子。

麻省理工公开课 - 化学原理课程节选

So, flats are below, sharps take you up a half step.

降调是下降半音级,而升调是上升半个

耶鲁公开课 - 聆听音乐课程节选

So, one thing we said last time was when we put up a model and try and draw lessons from it, we should just take a step back and say, what's missing here?

在上一讲,当我们,从一个模型中总结结论的时候,我们应该回过头重新审视一下,看看我们是不是疏漏了什么

耶鲁公开课 - 博弈论课程节选