We believe that America’s prosperity must rest upon the broad shoulders of a rising middle class. 我们相信美国的繁荣有赖于更多的人成为中产阶级， We know that America thrives when every person can find independence and pride

人体通过晒太阳来合成维生素D，可是皮肤科医生理查德·威勒指出，阳光还可以带来另一个惊人的益处。他的团队通过新研究表明：一氧化氮这种大量储存在皮肤中的化学传递质，能通过紫外线照射而释放出来，对血压和心血管系统产生很大益处。这是什么意思呢？那好，就从解释为什么苏格兰人比澳大利亚人更容易生病开始吧……演讲视频（无字幕）：Richard W

Overall, the international financial authorities have handled this crisis the same way as previous ones: They bailed out the failing institutions and applied monetary and fiscal stimulus. But this cri

　　Transforming of life英语演讲稿 　　The 9th UNNC CUP is an English speech contest held by students from East China at the university of Nottingham Ningbo, China. 　　The champion goes to a girl called Yunwen

That problem is that there is really no way. When you throw something away, it typically goes into a landfill. 问题就是，那些东西根本没有办法真正的消失。当我们丢掉一些东西时，它们通常会被送到垃圾填埋场。 Now, a landfill is basically something whi