So, now we can talk about it in different terms, Ei for example, talking about e sub i, which is the incident energy or the energy of the light that comes in, or talking about work function here, and that's just another way to say threshold energy.

现在我们可以从不同的方面,来谈论它了，举例来说，它是入射能量或者进来的光的能量,或者谈论这里的功函数，它是另一种描述临界能量的方式。

麻省理工公开课 - 化学原理课程节选

So, hunger sets in and it becomes extremely sad and tragic, and attempts to break out simply don't work; but, it had its light moments, and I can never resist those.

饥饿来临,一切都变得如此悲惨,而尝试逃跑只是徒劳,但这其中也有些趣事发生,我对这些逸事总是没抵抗力

耶鲁公开课 - 1871年后的法国课程节选

But Milton portrays himself as a laborer here, a poet who by labor and intense study actually has to work to produce the great poem. Milton's divine vocation, his calling, seems in this light to be something like a vocation in the modern sense: it's a job that exacts work or labor.

但弥尔顿把他自己描绘成一个工人,一个只能通过努力学习来创作出,伟大诗歌的诗人，弥尔顿的神圣的使命，他的天职，就此而论就像现代意义上的职业了：,一份要求工作和劳动的职业。

耶鲁公开课 - 弥尔顿课程节选