Without new treatments,the W.H.O.says, the number of new cancer patients could reach twenty-seven million a year by two thousand thirty.

VOA: special.2009.03.02

Well, we would have to H+ have one of these hydrogen atoms go to an H plus, * plus an electron, right? **H --> H+ + e-** So, now we have a hydrogen ion here.

我们先要让,一个氢原子变成氢离子，加上一个电子，对么*,我们现在有一个氢离子了。

麻省理工公开课 - 固态化学导论课程节选

So, for example, down here I wrote that it was n 2 and that it was h 2, but when I re-wrote the molecules up here, you saw that it's an h h single bond where it's a nitrogen-nitrogen triple bond.

比如，在这下面我写的是氮分子2,而这个是氢分子，但我在上面把这些分子的形式改写了，大家可以看到,这是一个氢与氢之间的单键，含一个氮与氮之间的三键。

麻省理工公开课 - 化学原理课程节选

He says these particles would offer a more exact method of transporting the short-lived drug, called B-H-three mimetic.

VOA: special.2010.03.16

It is underpopulated right now, so if you are still shopping for a humanities subject, this one bears the precious CI-H designation.

现在它们的选课人数比较少，如果你们还需要一门人文学科，这些都是很可贵的沟通密集型课程。

麻省理工公开课 - 固态化学导论课程节选

A calf is a young cow. A young female cow, especially one that has not yet had a calf, is called a heifer: H-E-I-F-E-R.

VOA: special.2009.07.21

This is equal to zero. So this irreversible process this Joule-Thomson process, is a constant enthalpy process. Delta h for this process is equal to zero.

等于0。所以这个不可逆过程,也就是焦耳-汤姆逊过程,是一个等焓过程。

麻省理工公开课 - 热力学与动力学课程节选

W.H.O.Director-General Margaret Chan declared the sickness a pandemic a disease that has spread to many nations.

VOA: special.2009.07.14

This is a painter called Frans Hals, H-A-L-S.

这是画家法兰斯·霍斯的作品

耶鲁公开课 - 欧洲文明课程节选

Sixty-five thousand H-1Bs are awarded each year to graduates with a bachelor's degree.

VOA: special.2009.07.02

Researchers studied the pathways on which dopamine travels in fifty-three adults with A.D.H.D.

VOA: special.2009.09.29

And George H.W.Bush spoke from a school in Washington in nineteen ninety-one.

VOA: special.2009.09.10

Researchers compared the pathways that transmit dopamine in fifty-three adults with A.D.H.D.

VOA: special.2009.09.16

Foreign graduates need a job offer to get an H-1B visa.

VOA: special.2009.07.02

She says the lack of attention and self-control that mark A.D.H.D.

VOA: special.2009.09.29

The letters H-E-P-A represent the words High Efficiency Particulate Air.

VOA: special.2009.07.14

The cancer scientists say this cancer often begins with an infection caused by a bacteria called Helicobactor Pylori, also known as H-Pylori.

VOA: standard.2010.05.12