translation.en: Very quickly, he noticed that when he moves his finger on the touchpad something moves on the screen -- and later on he told me, "I have never seen a television where you can do something."
translation.zh: 很快，他注意到，当手指在触控板上滑动时， 屏幕上的一个东西也在跟着动 -- 后来他告诉我，我从来没有见过 这样一台能够受人摆弄的电视机。