The United Nations Office on Drugs and Crime has named him as a goodwill ambassador to combat human trafficking.

VOA: special.2009.06.01

The White House Chief of Staff is the highest ranking member of the executive office of the president of the United States.

白宫办公厅主任,是美国总统的,行政办公室当中,职位最高的人员。

普林斯顿公开课 - 国际座谈会课程节选

The Office of the White House Chief of Staff is the highest office, and the Chief of Staff is the highest ranking member of the executive office of the president of the United States.

白宫办公厅是,最高级别的政府机关，而办公厅主任是,美国总统行政办公室,级别最高的官员。

普林斯顿公开课 - 国际座谈会课程节选

I, George Walker Bush, do solemnly swear... That I will faithfully execute the office of president of the United States...

VOA: special.2009.01.19

The Office of National Drug Control Policy said it works closely with anti-doping agencies in the United States and other countries.

VOA: special.2011.04.12

On Friday, the United Nations human rights office called for an investigation of possible war crimes in Sri Lanka.

VOA: special.2009.05.16

Roosevelt was forty-two years old -- the youngest man ever to hold the office of president of the United States.

VOA: special.2010.08.05

Presumably,he will be taking the oath of office shortly, and become the thirty-sixth president of the United States."

VOA: special.2009.08.16

But from his office in the White House, he must also attend to his other duties as president of the United States.

VOA: special.2010.05.10

Flashdance became the third highest box office hit of the year, earning more than ninety million dollars in the United States alone.

VOA: special.2010.03.12

The chief justice of the United States swore Johnson into office a few hours after Lincoln's death.

VOA: special.2010.01.21

The president and other political leaders of the United States are elected to office by the citizens.

VOA: special.2009.12.14

"Milk" is about Harvey Milk,the first openly homosexual man elected to public office in the United States.

VOA: special.2009.02.20

Rutherford Hayes was sworn into office as the nineteenth president of the United States in eighteen seventy-seven.

VOA: special.2010.03.11

"Well." said Andy, after thinking it over, "it might be better, if the United States Post Office should decide to investigate our marriage agency.

VOA: special.2010.04.24

George W. Bush leaves office on Tuesday after 8 years as president of the United States.

VOA: special.2009.01.17

The office at U.S.C.also assists family members who come to the United States with international students.

VOA: special.2009.03.19

Cleveland took office again just as the United States was entering an economic depression.

VOA: special.2010.06.24

That I will faithfully execute the office of president of the United States...

VOA: special.2009.01.19

The United States Patent and Trademark Office said no.

VOA: special.2010.07.16

Public opinion polls show a sharp improvement in attitudes towards the United States since Mr.Obama took office in January.

VOA: standard.2009.10.09

In recent weeks, suspected militants have launched a series of attacks, hitting police centers, the army's headquarters and a United Nations office.

VOA: standard.2009.10.24

Paul Risely is the United Nations World Food Program spokesman, and just returned to his Bangkok office after spending three weeks in Pakistan.

VOA: standard.2009.06.19

Antonio Maria Costa, who is with the United Nations Office on Drugs and Crime.

VOA: standard.2010.06.23

The senior official said despite the complaints against Mr.Zelaya at home, the United States wants his unconditional return to power with all powers and privileges of office.

VOA: standard.2009.07.01

A suicide bomber blew himself up inside the main office of the United Nations World Food Program in Islamabad last week, killing five employees of the agency.

VOA: standard.2009.10.11

A poll marking hawkish Prime Minister Benjamin Netanyahu's first 100 days in office gives him positive marks despite a deepening dispute with the United States over Jewish settlements.

VOA: standard.2009.07.03

Also attending are delegations from the African Union, the United Nations emergency preparedness office, the World Health Organization and the Red Cross as well as representatives from Egypt,Mali, Jordan and Nepal.

VOA: standard.2009.04.28

Said says even though Mr.Obama now holds the highest office in the United States, he should not lose touch with places like the south side, and people here should hold him accountable.

VOA: standard.2010.02.24

Mr.Obama said his administration, in its nine months in office, has dealt with many of the issues that created a strained relationship between the United States and the international community during the Bush administration.

VOA: standard.2009.09.23