translation.en: Now having seen that -- and I've seen it hundreds of times, because I use this in every talk I give -- I still can't see that they're the same size and shape, and I doubt that you can either.
translation.zh: 虽然我已经几百次重复这样的演示 因为我做的每一次演讲都会用到这个演示 可我还是不能相信他们是具有同样的形状和 大小的 我想你也不一定肯定的这么说