We're at a very interesting place in agriculture in Africa. 我们处在非洲农业非常有趣的节点上。 By the end of this year, we'll have almost one billion mobile phone subscriptions. 到今年年底，我们将会有接近十亿手机订阅用户。 We have the powe

Hi everybody. A few days ago, I unveiled a new national plan to confront the growing threat of a changing climate. Decades of carefully reviewed science tells us our planet is changing in ways that wi

I am a writer. Writing books is my profession but it's more than that, of course. 我是个作家，写作不仅仅是我的职业， It is also my great lifelong love and fascination. And I don't expect that that's ever going to chan

November 16, 2007 MRS. BUSH: Welcome to the White House. Thank you for coming today to celebrate National Adoption Day. Today is a chance to thank both the parents who give children life -- and the pa

Remarks of President Barack ObamaSaturday, May 1, 2010Weekly AddressWashington, DC Over the past few weeks, as we’ve debated reforms to hold Wall Street accountable and protect consumers and sma