Hi, everybody. 嗨，大家好。 I'm here on the factory floor of a business in Hatfield, Pennsylvania, where folks are working around the clock making toys to keep up with the Christmas rush. 我现在正在宾夕法尼亚州哈特菲
This ability to make copies of DNA, as simple as it sounds, has transformed our world. DNA的这种复制能力听起来很简单，却改变了我们的世界。 Scientists use it every day to detect and address disease, to create innovative medic
《国际英文演讲高手指导》 ：用你的语言改变你的人生 精辟的演讲技巧为你揭开演讲之迷，从此踏上成功的演讲之路！商务演讲发掘在商界纵横捭阖，做一个出色的企业家必须具备的语言能力，展示企业家的风范！国家领导人经典演讲说出最代表中国国情的英语，介绍中国，传播文明！政治演讲了解政治演讲的风格，学习伟大政治家的演讲风范！把听众引入正确的位置深层挖掘演讲技巧，用精彩绝伦的语言套牢听众的视线、精神与灵魂。 Wel
I'm going to go off script and make Chris quite nervous here 我打算不按预定的来，这让克里斯很紧张 by making this audience participation. 我打算让观众参与互动 All right. Are you with me? Yeah. Yeah. All right. 懂我的意思吧，懂。很好 So
