translation.en: What if he says, 'Oh, I already have one,' or, 'I've already memorized it'?"  And so he came to visit my lab and looked around -- it was a great visit.
translation.zh: 如果他说，‘哦，我已经有一张了’ 或是‘我已经背下来了’该怎么办？” 因此他到访我的实验室 四处浏览 -- 这是个很棒的访问。