Hi, everybody. 大家好。 This weekend, I depart for Asia to advance American leadership and promote American jobs in a dynamic region that will be critical to our security and prosperity in the century ahe
Now, with RFIDs and other things -- whatever technology it is, it doesn't really matter. 到那个时候，我们使用无线射频辨识系统（RFID）但用什么技术都无妨。 The point is that everything will have embedded in it some sensor connecting
The other great principle of evolution is sexual selection, and it operates very differently. 进化的另一大原则是性选择，它运作的方式则大相径庭。 The peacock's magnificent tail is the most famous example of this. 孔雀那华丽的尾巴就是最著名
