These are exciting times. They're exciting in Washington, and I have really looked forward to coming to Wellesley. I thought it was going to be fun. I never dreamt it would be this much fun. So, thank
So here's two questions 每当我思考这个问题 that I have in my head when I think about this problem. 两个疑问一直在我脑子里打转 The first is: 第一 Are cities part of biology? 城市是生物界的一部分吗 Is London a great big whale? 伦敦是一只大
OK, now, you all saw what changed, right? 好，你们都看到了什么东西改变了，对吧？ How many of you noticed that every one of those squares changed color? 有多少人注意到每一个方块都变了颜色？ Every one. I'll just show you by running it
