Everybody wants to go for a wonderful hike and start off with fresh air and all the things we're going to have in our lives the whole next year.

VOA: special.2009.12.28

We're going to talk about various aspects of food and I'd like to start off with a little pop quiz.

我们将讨论有关食品的方方面面,我将以一个小测验来开始这门课

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.

然后我们会回头继续讨论效率问题,我们如何计算算法的效率？,我们处理这些问题的时候,最重要的事情是什么？,我们今天要去讨论这个问题，毫无疑问我们要用,挺多节课来学习这个。

麻省理工公开课 - 计算机科学及编程导论课程节选

So it's going to keep in mind the limitations, so let's start off with talking about ionization energy.

那么让我们将这些局限性记在心里，继续来讨论一下电离能。

麻省理工公开课 - 化学原理课程节选

And where we had left off was we were going to start one example of thinking about now where we have a heteronuclear diatomic molecules, so two different atoms in terms of forming the molecule.

我们还剩下一个,异核双原子分子的例子没讲,这里组成分子的原子，是不同的。

麻省理工公开课 - 化学原理课程节选