This is Delphi and Pan, and you're going to see Delphi hitting a key, he hears a computer-generated whistle --  -- and gets a ball, so they can actually ask for things they want.
Delphi 和Pan，我们要观察的是Delphi 碰按键，听到计算机哨音……拿到球 所以他们真的可要求想要的东西