奥巴马发表农历蛇年贺词

Social Innovation Summit 2012 comes to an end

Home TB treatment is helping patients in Swaziland

除了说声Good luck，你还能怎么祝人家好运？

E-commerce challenges traditional stores

Tablet computers most wanted gift this holiday

New technology used to track US flu outbreak(视频)

United States Senate's process of confirming the president's nominees

US economy faces another cliff

Ocean floor reveals past climate changes

Music would not be the same without the guitar

Getting a firm grip on weed control

Oxfam: Power, water shortages in Goma

Inaugural festivities put the 'party' into political parties

Washington insider Susan Rice could face tough nomination battle

Words and their stories: Belittle

Major progress in health through technology

Teenager wins top prize for pancreatic cancer test

First lady's new hairstyle creates buzz

Words and their stories: state nicknames, part 3

Student launches hospital for iPhones

Michelle Obama stuns in Jason Wu gown

Is investing in Africa a good bet?

WHO warns of malaria resurgence

How babies learn, when, and even in what position

Words and their stories: State nicknames, part 4

Benedict departure will leave little room for change

Five actresses compete for coveted Oscar

Words and their stories: Santa Claus

London set for huge Chinese New Year celebrations