孩子不是涂色本,你不能随心所欲填上自己喜欢的颜色。
The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
【释义】治理国家就像攀登山丘,不是靠一步就能完成的。
"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."
市场总是在寻找下一个大动作。