数学的乐趣在于发现模式并理解它们的含义。
The joy of mathematics is in the discovery of patterns and the understanding of their implications.
一个品牌的力量在于它能够适应而不失去其核心身份。
I only hope that we never lose sight of one thing - that it was all started by a mouse.
In the end, we are all just trying to find a place where we belong.
中心地的等级越高，其服务的区域越大，此类中心地的数量越少。