美国英语音标外教发音详解视频：'ur' in her in perfect，重读卷舌音

Scientists seek HIV vaccine using monkey model

失败竟然比成功更重要？

Somalis in US optimistic about changes back home(视频)

你见过最奇葩的密码是什么？

Marylanders recall bloodiest day in US history

US ambassador killed in Libya

懒癌患者的福音 十款快捷美味的早餐

After long fight, DC wins right to a statue in the Capitol Building

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

US drought renews debate on biofuel

让你更时髦的5样明星单品

unlucky的十种表达方法

CPJ: Journalists need new ways to stay safe

Vietnamese-American doctor helps rebuild bodies, lives(视频)

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

Man who found California gold died broke

王群司长在第71届联大一委一般性辩论中的发言

英语单词不用逐个背，252个词根就够了（九）

“百慕大三角之谜”已解开？

Protests spread over anti-Islam video

European farmers work to boost global grain supplies

Can social media improve voter turnout?

'War of 1812' flag still inspires after 200 years

American history: Columbus discovers the New World

English settlers establish colonies In the New World

US firms prospering in Asia, Russia(视频)

Tons of methane gas could be trapped under Antarctica

Fewer children under the age of five are dying

你怎么看待代购这个“行业”呢？

Carlsbad Caverns National Park in New Mexico