下半年的雅思听力备考建议

UN chief warns of perils ahead of climate change conference

Over a billion women lack safe sanitation

Words and their stories: state nicknames, part 1

Music would not be the same without the guitar

Experts work to develop better tools to predict severe weather

Words and their stories: state nicknames, part 2

New medical tape reduces pain for newborns, older adults

Thanksgiving, but US turkey farmers aren't celebrating

Gay rights groups push for anti-discrimination laws

Holiday season features latest, hottest electronic gadgets

Teenager wins top prize for pancreatic cancer test

Efforts mount to conserve wild turkey breeds

World Prematurity Day aims to lower rates of premature births

Now on the iPad: Apps for orangutans

Abduction prompts girl to fight back for all women

On the bubble?

American history: The shot heard around the world

到别人家做客的十大禁忌

Experts not hopeful about Doha climate conference(视频)

Words and their stories: state nicknames, part 3

Could waste plastic reduce our need for oil?

New study could change treatment for asthma

Words and their stories: Losing it

India's youth keep spotlight on violence against women

UNAIDS: Sharp drop in new infections

奥巴马发表农历蛇年贺词

The State of Vermont: fertile farmland, green mountains

Kyoto Protocol winds down as delegates head to Doha

Home TB treatment is helping patients in Swaziland

Words and their stories: State nicknames, part 4