座头鲸，它的声音在水下可以传播非常远的距离。Humpback whales are known for their magical songs, which travel for great distances through the world's oceans. These sequences of moans, howls, cries, and other noises are quite complex and often continue for hours on end. Scientists展开全文
Since 2004, Brett McFall and I have taken our World Internet Summit events to 17 different countries for 52 times. And this is the first time that we are doing such an exciting event which is focused on the Chinese living outside of China. Of course, even if you are not Chinese•展开全文 原微博
