And what he said was that when you get down to atomic length scales there are limits, there are constraints on our ability to observe.

讲的就是,当你去进入到原子长度的尺度中,我们的观察能力,有一定的限制条件。

麻省理工公开课 - 固态化学导论课程节选

But by the time we finish the end of that line, we are really right in the middle of very regular iambic pentameter.

但当我们读完这一行的时候，我们才真正进入了正常的抑扬格五步格诗。

耶鲁公开课 - 现代诗歌课程节选

And what we know is that very often we enter a downward spiral, a vicious cycle when we go into this narrow and constrict mode.

我们知道经常会进入下行螺旋，一个恶性循环，当我们进入狭窄收紧的模式。

哈佛公开课 - 幸福课课程节选