The balance between economic growth and environmental responsibility is the defining challenge of our time.
每张专辑都是我们旅程中的新篇章。
一个人的幼儿时期,其实就是一种不断习得能力的过程,这个周期性的刺激,将带给儿童无限的欢乐和乐趣。
The goal of cognitive science is to explain how the mind works in terms of information processing.