The last question is what everybody said, but you know, I mean, they must have poked their head over the wall and asked the people in your office, can you show me how to do it, and then somebody taught him.
最后这个问题都把我们问住了， 他们肯定要把头伸到墙的另一头 来问办公室里的人 你能教我怎么操作吗，然后才会有人教他们。