And there's been a bunch of interesting studies recently that have shown this playing around is really a kind of experimental research program. 最近有很多有意思的研究显示了孩子的随意尝试，的确可以作为一个研究项目。 Here's one from Cris
When I was a child, I always wanted to be a superhero. I wanted to save the world and make everyone happy. 小时候，我一直梦想成为一个超级英雄。我想要拯救世界并让所有人快乐。 But I knew that I'd need superpowers to make my dreams come
That information is available in the current shot, but there's another source of information not available on the current shot, 以上这些信息是实时获得的，但是另一个获得信息的渠道，不是实时获得的， but only available by repeated experi
My father's father worked in the Chevy plant in Flint, Michigan. He was an assemblyline worker.He drove his two children here to Anna Arbor,and told them: That is where you're going to go to c
