Some are very tall. Yet all are below the level of an observer on the edge, looking over.

VOA: special.2009.10.07

I just want to make mention of this in case there's ever doubt, generally parentheses do solve your problem as an arithmetic but do realize this is some lower level details we'll come back to over time.

是想告诉大家如果你对某些式子的前后运算关系不确定，就加上括号,这都是一些小细节,我们以后还是会再提到的。

哈佛公开课 - 计算机科学课程节选

It appears that people, at some level, think that they can exert willpower over it and control it.

这说明在某种程度上,人们认为他们可以通过意志力控制结果

耶鲁公开课 - 金融市场课程节选

Just over seventeen percent of Washingtonians live below what is considered the poverty level in the United States.

VOA: special.2009.03.20

And, likewise, we get over to here and finally, look, here is 5d and 5f almost at the same level.

照这样，我们分析到最后，看，5d和5f层几乎是在同一层。

麻省理工公开课 - 固态化学导论课程节选

Mr.Stevens says a one hundred percent increase in fish farming over ten years is necessary to keep providing for people at the current level.

VOA: special.2011.02.08

So, if we start instead with talking about the energy levels, we can relate these to frequency, because we already said that frequency is related to, or it's equal to the initial energy level here minus the final energy level there over Planck's constant to get us to frequency.

如果我们从讨论能级开始，我们可以联系到频率上,因为我们说过频率和能量相关,或者说等于初始能量,减去末态能量除以普朗克常数。

麻省理工公开课 - 化学原理课程节选

"We estimate in WHO that over thirty million lives can be saved in the next ten years by simple measures -- reducing the level of salt by fifteen to twenty percent, reducing the amount of tobacco, and increasing the number of people who are at risk of a heart attack and stroke to be on simple preventive treatment."

VOA: special.2011.05.11

And if I pull it out one more level, 12k it's 12 plus 12 plus t of b over 8, 12 k because I'll have 12 of those to add up, plus t of b over 2 to the k.

总结一下也就是说，在k步以后，总步数应该是，那这种情况什么时候才能停止呢？,才能到达最基本的情况呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Almost one in four unemployed workers is experiencing an unemployment spell of six months or longer, the highest level in over 25 years,".

VOA: standard.2009.04.03

There are also Western concerns over high-level corruption in the country.

VOA: standard.2009.12.28

The title for the Black Satellites is the first for an African team at the Under-20 level, despite the dominance of African nations in the youth categories over the last decades.

VOA: standard.2009.10.17

On the eve of the football Confederations Cup, the head of the South African Organizing Committee, Danny Jordaan, once again patiently responded to nagging inquiries over the level of security for the tournament.

VOA: standard.2009.06.12