每日一句学英语：没有意外

Scientists seek HIV vaccine using monkey model

失败竟然比成功更重要？

Protests spread over anti-Islam video

Sea life color codes food to evade danger

US drought renews debate on biofuel

Chinese invest in Italian soccer club(视频)

Carlsbad Caverns National Park in New Mexico

From Giverny to Bronx: 'Monet's Garden' flowers in NY(视频)

Can social media improve voter turnout?

The Occupy Movement turns one

Designing an alternative to antibiotics

Marylanders recall bloodiest day in US history

National 9/11 museum at standstill as anniversary nears

English settlers establish colonies In the New World

'War of 1812' flag still inspires after 200 years

Man who found California gold died broke

Turning industrial waste-heat into electricity

Teens help revive California nature

American's first exchange students from China

US automakers bet billions on Russian car boom

To avoid humans, tigers take night shift

Mideast protests spark debate over free speech, religion(视频)

Driving with GPS can be difficult to navigate

Tons of methane gas could be trapped under Antarctica

European farmers work to boost global grain supplies

懒癌患者的福音 十款快捷美味的早餐

American history: Columbus discovers the New World

Reality of mormon life more complex than Romney image(视频)

US ambassador killed in Libya

Apollo 13: 'Houston, we've had a problem here'