We have to beat that. 我们必须克服它。 We can do it because in space there are no aerodynamics. 我们能够这样做是因为太空里没有空气阻力。 We can go and use inflatable systems for almost everything. 我们几乎总是能够使用充气系统。 This is an idea
THE PRESIDENT: Thank you very much. Please, have a seat. Thank you very much, Tom, for the gracious（亲切的，高尚的） introduction. I want to make a few other acknowledgments. To Tom Bell, the Chamber Board Pr
Hi, everybody. 大家好! This is commencement season, a time for graduates and their families to celebrate one of the greatest achievements of a young person's life. 又到一年毕业季,毕业生和他们的家长一起庆祝一个年轻人一生中最重要的时刻
Now the reason the chimpanzees don't do that 黑猩猩不那么做的原因 is that they lack what psychologists and anthropologists call social learning. 是它们缺乏心理学家和人类学家所谓的社会学习能力 They seem to lack the ability to learn fr
