"From the back, I can only be sure of one thing: good materials,"I really want to do it right now" 。At first, we just snickered under our breath, but once we got going, we couldn't hold back anymore. We started letting loose, spewing out all sorts of obscenities, and our voices grew louder and louder. 。The child seemed to sense something, turning his head and giving us a glance. 。,There are three identical dormitory buildings in this courtyard. He must have gone into one of them, but which one。