Nature has operated a vast laboratory for two billion years , and bionics probes the secrets of the wonderful " special - purpose " mechanisms that have developed 自然界是一个已进行了二十亿年实验的巨大实验室，它创制了许多奇妙的"专用"机制，仿生学就是要研究这些机制"奥秘" 。
An accountant visited the natural history museum . while standing near the dinosaur he said to his neighbor : " this dinosaur is two billion years and ten months old " 一个会计去参观国家历史博物馆，当他站在一件珍藏品前时，对他身边的人说： “这件藏品已经有二十亿年零十个月的历史了” 。
If two billion of the yuan paid out in bonuses last year had been held in reserve , everyone would have fared better this year and it would have been unnecessary to discontinue many capital construction projects 如果去年少发二十亿奖金，今年大家的日子要好过得多，基本建设的好多项目就可以不下马。
For all of us here , for the millions who have sent us , for the whole two billion members of the human family - our land is now , more than ever , the last best hope on earth 对于我们全体与会者，对于选派我们与会的几百万人，对于人类大家庭的二十亿成员，我们国家如今比过去任何时更是世界上最后的最大希望所在。
In this view , oxygen - detesting methanogens reigned supreme during the first two billion years of earth ' s history , and the greenhouse effect of the methane they produced had profound consequences for climate 据此推测，厌氧的产甲烷菌曾称霸地球历史的最初20亿年，它们产生的甲烷所产生的温室效应，对当时的气候有举足轻重的影响。
If you can read this message , you just received a double blessing in that someone was thinking of you , and furthermore , you are more blessed than over two billion people in the world that cannot read at all 如果你能读到此文，那意味着你获得了双重的祝福，因为有人想到了你，而且与世界上超过20亿的文盲人口来比，你真是幸运多了。
If you can read this message , you just received a double blessing in that someone was thinking of you , and furthermore , you are more blessed that over two billion people in the world that cannot read at all 如果你能读到此文，那意味着你获得了双重的祝福，因为有人想到了你，而且与世界上超过20亿的文盲的人口来比，你真是幸运的多。
Scientists have created a powerful new treatment for hepatitis using a revolutionary technique that switches off harmful genes , providing hope for the two billion infected worldwide with the b strain of the virus 科学家们发明了一种治疗乙肝感染非常有力的新方法,他们利用一种可以关掉有害基因* *性的技术给全球20亿乙肝感染人带来希望
If you can read this message , you just received a double blessing in that some one was thinking of you , and furthermore , you are more blessed than over two billion people in the world that can ' t read at all 如果你能读到此文，那意味着你获得了双重的祝福，因为有人想到了你，而且与世界上超过20亿的文盲人口来比，你真是幸运多了。
Scientists have created a powerful new treatment for hepatitis using a revolutionary technique that switches off harmful genes , providing hope for the two billion infected worldwide with the b strain of the virus 科学家们发明了一种治疗乙肝感染非常有力的新方法,他们利用一种可以关掉有害基因革命性的技术给全球20亿乙肝感染人带来希望
