Today you can lay down -- lie on your living room floor, sipping bourbon, 如今你可以躺着，躺在卧室地板上，喝点小酒， and teach yourself any language that you want to with wonderful sets such as Rosetta Stone. 用丰富的学习材料，例如R
英语演讲稿-01 We often hear people say, “Never give up.” These can be encouraging words and words of determination. A personwho believes in them will keep trying to reach his goal no matter how manytimes
Competing on the Global Playing Field in the 21st Century In his State of the Union address, President Obama spoke about doubling America’s exports over the next few years. Today, he discussed the fir
Gabe Barcia Colombo:My DNA Vending Machine加布里埃尔·加西亚-科伦坡: 我的 DNA 自动贩卖机 通常来说，自动贩卖机售卖苏打饮料，糖果和薯片。但这可和 TED 研究会员加布里埃尔·加西亚-科伦坡所说的自动贩卖机不一样。这位艺术家希望设置人类 DNA 自动贩卖机，售卖提取自人体的 DNA，将它们装在小瓶子里并配有人体样本的照片。
President Obama says that last night's tragedy in Colorado reminds us of all the ways that we are united as one American family, and commits the Federal government to doing whatever is necessary t
