经济变革的过程在很大程度上是路径依赖的。
一本书就是你握在手中的一个梦想。
The future of life on Earth depends on our ability to take action. Many individuals are doing what they can, but real success can only come if there is a change in our societies and our economics and in our politics.
The fight against infectious diseases is a global effort that transcends borders.