I got the camera angle wrong. That one is just amateur stuff, but what she was saying, as you could make out, was about neurons, with her hands were like that, and she was saying neurons communicate.
我把相机角度弄错了。那是张业余作品。 但是她说话的内容，你们能听得出来， 是关于神经元的，她的手那样比划， 她正在说神经元之间的信息传递。