The two presidents met for the first time on the sidelines of the G-20 economic conference in London in early April and set in motion what Clinton says is an effort to raise the frequently contentious U.S.-Russian relationship to a higher level.

VOA: standard.2009.05.07

This should all sound incredibly familiar, like I'm just repeating myself in terms of photoelectric effect, because essentially that's what I'm doing, and that's one reason we spent so much time and did so many problem-set problems on the photoelectric effect.

这应该听起来极其熟悉，就像我在重复自己在讲光电效应时所说的话，因为基本上我正是在这样做，这也是我们在光电效应这个问题上,花这么多时间,做这么多习题的原因之一。

麻省理工公开课 - 化学原理课程节选

So it was very important that we keep the motivation high so that they were not in the compassion of time and the requirement set for very high-stress jobs climbs under the way.

使这一动机足够强烈,是十分重要的,这样不会过分在乎时间,高压力工作带来的要求,也就不那么重要了。

麻省理工公开课 - 媒体、教育、市场课程节选

And they got in this habit of, every time they had a bright, happy text, they'd set this in one kind of mode or key-- a major mode--and every time they had a sad one, they'd set it in minor.

于是人们养成了这样的习惯,每当人们书写欢乐,愉悦的歌词时,他们就设定一个调式或调性,即大调,每当人们书写忧伤的歌词时,他们就定为小调

耶鲁公开课 - 聆听音乐课程节选

One of the things we said last time was, with that set of things, the ability to give values-- sorry, to give names to values-- the ability to make decisions, the ability to loop as a function of that, the ability get things in and out, we said that that actually gave us a language we said was Turing-complete.

上次我们和以上内容一起说过，我们可以赋值--抱歉,为数值命名--可以做出判断决定-,并且据此进行循环,可以输入输出数据,我们说拥有这些功能的语言,是图灵完备的。

麻省理工公开课 - 计算机科学及编程导论课程节选

First of all, negative time should not bother anybody; t=0 is when I set the clock, I measured time forward, but yesterday would be t = -1 day, right?

首先,负的时间对我们不存在任何干扰,t=0使我们设定的初始时间,我是用顺序计时,所以昨天就可以记为-1天,对吗

耶鲁公开课 - 基础物理课程节选