微笑事实上可以使你在他人眼中看起来更好。最近一项在宾州州立大学的研究发现，当你微笑时，你不仅显得更可爱、更有礼貌，事实上你会显得更能干。当你想看起来很棒、很能干、减少你的压力，或改善你的婚姻，或想要感觉像是吃了一堆高质量巧克力，而不需承受热量的代价，或彷佛在一件多年没穿的旧夹克口袋中发现二万五千元，或当你想使用超能力帮助自己和周围每个人活得更长久、更健康、生活得更幸福，微笑吧！ Ron Gutma
So, let's just take a closer look at nuclear. 所以，让我们好好研究一下核能。 The United Nations Intergovernmental Panel on Climate Change has looked at the carbon content of all these different fuels, 联合国气候变化政府间协商组织
dream演讲稿（一） My dream Students, guests , teachers and honorable judges Good morning ! My great pleasure to share my dream with you today. my dream is to become a teacher… As the whole wo
January 2, 2008 President George W. Bush today announced his intention to nominate three inpiduals and that he has nominated six inpiduals to serve in his Administration. The President has nominated t
