The address is u-s-a-l-e-a-r-n-s dot o-r-g.

VOA: special.2009.01.15

And that in the case of constant volume, U in this case that's my delta u, and then I'll H add my little delta n term to get delta H.

这是在等体情形下，此时的到的是Δ,然后我可以加上Δn的项来得到Δ

麻省理工公开课 - 热力学与动力学课程节选

RT So it's delta u plus RT, we can say T1 is the n temperature we've used here, delta n of the gas.

所以它应该是ΔU加,我们可以在这里用T1，气体的Δ

麻省理工公开课 - 热力学与动力学课程节选

The U.N.Children's Fund reports nearly half of the estimated two million people displaced by conflict in Pakistan's Swat Valley are children.

VOA: standard.2009.07.03

C-A-N-S-U An S in the side so Cansu, that was spelled C-A-N-S-U.

有一个S喔。

哈佛公开课 - 计算机科学课程节选

North Korea's deputy U.N.Ambassador Pak Tok Hun categorically rejected the resolution, saying it was a U.S.initiative intended to destroy North Korea.

VOA: standard.2009.11.20

At the U.N.climate change summit in Copenhagen last year, Senegal's president,Abdoulaye Wade, stressed the importance of planting the "Great Green Wall."

VOA: standard.2010.04.01

Guinea Bissau has Africa's second lowest rating on the U.N.'s Human Development Index measuring life expectancy,education, and standards of living.

VOA: standard.2009.04.24

On the Security Council's regular program of work this month will be a debate on the U.N.'s peacekeeping mission in Haiti.

VOA: standard.2009.09.02

Turkish officials were in Washington last month to defend their government's no-vote in the latest round of U.N.sanctions against Tehran.

VOA: standard.2010.07.26

But he says the United States can't solve the world's problems alone and it is time for all U.N.

VOA: standard.2009.09.23

Israel's Foreign Ministry spokesman Yigal Palmor says the investigation by the U.N.-appointed Goldstone Commission was one-sided and biased from the beginning.

VOA: standard.2009.11.06

In keeping with U.N.tradition, the U.S.president will address the General Assembly on the first day of its annual debate, on September 23.

VOA: standard.2009.09.02

Also briefing the General Assembly's Social,Humanitarian and Cultural Affairs Committee was the U.N.Special Rapporteur for Burma, which is also known as Myanmar.

VOA: standard.2009.10.22

The U.N.and U.S. imposed fresh sanctions on Iran, last month, to force it to stop enriching uranium for its controversial nuclear program.

VOA: standard.2010.07.23

May Rihani,from the U.N.Girl's Education Initiative's Global Advisory Committee, gave an unlikely example from a "life skills" curriculum being used in Mali.

VOA: standard.2010.05.19

On Friday,Mr.Ban's spokeswoman, Michele Montas, announced that the three-person panel would be led by Chile's U.N.Ambassador, Heraldo Munoz.

VOA: standard.2009.06.21

"North Korea changed their behavior and words from mid-July, that's the point U.N.Security Council resolution 1874,to be implemented,".

VOA: standard.2009.12.08

The secretary of state joined her counterpart from the Netherlands, Maxime Verhagen,at a meeting at U.N.headquarters Friday previewing next week's council meeting.

VOA: standard.2009.09.25

Manuel Bessler, head of the U.N.'s Office for Coordinating Humanitarian Affairs in Pakistan, tells VOA that many civilians have fled the area.

VOA: standard.2009.10.17

He also awarded the Medal of Freedom to Mary Robinson, Ireland's first female president and a former U.N.high commissioner for human rights.

VOA: standard.2009.08.12

He said the U.N.'s own security will need to be increased during this transition period, which will require adequate funding from member states.

VOA: standard.2010.08.04

The French government said they were in Mogadishu working as security advisors to Somalia's U.N.-backed transitional government.

VOA: standard.2009.08.26

The meeting would involve Mr.Netanyahu, U.S.President Barack Obama and Palestinian President Mahmoud Abbas alongside the U.N.General Assembly in New York later this month.

VOA: standard.2009.09.13

Creating rural jobs is on everyone's to-do list, from the government to the U-N to aid groups.

VOA: standard.2010.03.30

The U.N.says that violence has displaced The erratic movements of Kony's men are rapidly expanding the number of outside players into the conflict.

VOA: standard.2009.08.27

The watchdog group, partly appointed by the U.N., is overseeing the complaints of voter fraud and other irregularities reported since last week's balloting.

VOA: standard.2009.08.24

Part of Mr.Clinton's mandate as U.N.Special Envoy is to help encourage more private sector investment in Haiti.

VOA: standard.2009.09.09

The U.N.'s Human Rights chief says the judicial response to the abuses have been wholly insufficient.

VOA: standard.2009.09.12

Sudan's U.N.Ambassador Abdalmahmood Abdalhaleem Mohamad echoed that, telling VOA that those who have been expelled will not be allowed to circumvent the government's order.

VOA: standard.2009.06.11