But from the time the organization was established in 2001, the supply has sometimes been as low as 40,000 units.

VOA: standard.2010.06.04

That area was controlled by Egypt at the purported time of the Exodus Running north to south, next to that coastal plain, is a region of low mountains.

在出埃及记时期，这个地区被埃及所控制,南北分布，靠近海岸平原，是低矮的山区。

耶鲁公开课 - 旧约导论课程节选

But because the way sound waves operate, we have these low sound waves taking a very long time to clear.

但鉴于声波的传播方式,低声波要过更长的时间才消失

耶鲁公开课 - 聆听音乐课程节选

Reports at the time said more than Many analysts say it was a low point of Mr.Saakashvili's presidency.

VOA: standard.2009.09.01

At that time, the Fed had cut the Federal Funds Rate to 1%, we had very low short rates.

当时联储局将联邦基金利率降至1%,短期利率非常低

耶鲁公开课 - 金融市场课程节选

And why are we wasting our time doing this?." Rossman says the risk from serpentine are low.

VOA: standard.2010.07.26

So we know we always want to have our systems in as low an energy as possible, so it makes sense that a bond would happen any time we got a lower energy when we combine two atoms, versus when we keep them separate.

我们知道我们总是希望使我们的系统,处于能量尽可能低的状态，因此就应该有化学键产生,一旦我们合并两个原子之后体系的能量变得更低，相较于分开时。

麻省理工公开课 - 化学原理课程节选

Now it has hit an all time low, dipping below the 60,000 mark.

VOA: standard.2009.10.27

And President Bush at the time was also suffering from low approval ratings.

那个时候布什总统,支持率是非常低的。

普林斯顿公开课 - 国际座谈会课程节选

"The detainees were kept naked for weeks, months at a time - kept in very small cells, whose temperatures were kept artificially low, sometimes to the extent that the naked detainees, as one official said,seemed to turn blue,"

VOA: standard.2009.03.23

We had that very interesting piece last time, "Polish Oxcart" where he used this principle of low sounds produce sound waves that stay forever and we hear those low sounds first and last.

上次我们听了一段很有意思的曲子,《牛车》,当时他运用低频声音,持续时间长的原理,我们在最初和最后听到的都是低音

耶鲁公开课 - 聆听音乐课程节选

"they would like to receive a message that uses some kind of code, and instead of sending a message that reminds them of their pill, they would like a motivational message, like for example, 'it's time for your life.'" Services like that have been shown to work in low-income countries, and now they're starting to appear in richer countries.

VOA: standard.2010.02.24

We talk in terms of high pitch and low pitch although we'll fine tune that next time, and then we have this idea of duration or time, which we tend to write out in symbols that move from your left to right.

我们是从高低方面来谈论音高,即使我们将于下次讲解曲调的问题,我们已经有了音符时值或时间的概念,我们倾向于用符号来表示,时间是从你的左边向右边移动的

耶鲁公开课 - 聆听音乐课程节选