But Marc Tucker says students who pass the exams could stay in high school and take a demanding set of exams at the upper division level.

VOA: special.2010.02.25

Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.

吸收就是发射的逆过程,与从一个高能量到低能量不同，当吸收光时，我们从低能量开始,吸收能量到一个更高的能量。

麻省理工公开课 - 化学原理课程节选

And not be too critical or expect that you should be at a very high level when you're just beginning.

不要太挑剔，也不要奢望自己刚开始的时候就可以达到很高的水平。

学外语的时候 - SpeakingMax英语口语达人

A Pentagon release says Gates and Xu also agreed to other high level visits, and to exchanges among lower-ranking service members.

VOA: standard.2009.10.27

So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.

例如这是平均位置，在峰的位置水位高，在谷水位低，我们也可以,讨论声波它也是某种,量的周期变化，在这里我们,讨论的是密度,我们有高密度区和低密度区。

麻省理工公开课 - 化学原理课程节选

The U.S.Assistant Secretary of State, Kurt Campbell,and his deputy, Scot Marciel,arrive in Burma Tuesday for two days of high-level meetings.

VOA: standard.2009.11.02

We're going to talk in some detail, not a very high level of detail, but in some detail about how this communication takes place between cells and how the information is passed down one of these cells today.

我们还要讨论些细节问题,但不是太深,今天只讲细胞间通讯的发生原理,和信息怎样从一个细胞传递到另一个细胞

耶鲁公开课 - 生物医学工程探索课程节选

He says they hope the high level U.S.-Burma meetings will bring about an unconditional dialogue between the NLD and the military government.

VOA: standard.2009.11.02

The new U.S.strategy calls for regular high level meetings among U.S., Afghan and Pakistani leaders.

VOA: standard.2009.03.28

Earlier this year, President Barack Obama's administration said neither that engagement nor U.S.sanctions had brought about democratic change and that Washington would move to pursue high-level meetings.

VOA: standard.2009.11.02

"If people are not able to enhance their skills in various medical specialties, therefore they cannot provide the high level of health care and services that the population needs."

VOA: standard.2010.06.01

Afghan President Hamid Karzai and Pakistani President Asif Ali Zardari flew into Tehran, at the head of high-level delegations, to discuss a series of problems, including drugs, terrorism and Islamic extremism.

VOA: standard.2009.05.24

U.N.chief Ban Ki-moon told reporters he would go to the Danish capital next week to open the high-level segment that he expects will draw more than "I am encouraged and I am optimistic.

VOA: standard.2009.12.09

"What we have found is that there is great and growing interest in greening the campus operations but what we are not seeing is a high level of interest around integrating sustainability in the classroom,".

VOA: standard.2009.12.08

But the U.S.reaction to Thursday's attack was at an unusually high level, with both President Obama and Secretary of State Hillary Clinton issuing written statements expressing sympathy to the families of victims and calling for the attackers to be held accountable.

VOA: standard.2010.07.16