When coming up with the curriculum for Ruby's world, 当我要设计一个介绍Ruby世界的课程时， I needed to really ask the kids how they see the world 我想要真正问问孩子们，他们是如何看待这个世界的， and what kind of questions they have and I wou
PRESIDENT BUSH: I have just had a very constructive and important dialogue with the United Nations Envoy to Afghanistan. Mr. Ambassador, thank you so very much for coming to the Oval Office, and thank
I want to join Boris in paying tribute to the Prime Minister. He has led this country with courage, dignity and grace. He and the Chancellor rebuilt our economy. He has made opportunity more equal in
What's great about this approach is that it can be personalized. 这种方法最大的好处就是可以定制。 We can add many different layers of siRNA to address different mutations and tumor defense mechanisms. 我们可以添加多重siRNA，分
