or, Ou Yan stood up and politely said, "Professor, my name is Ou Yan.""Finally, class is starting..." The old professor smiled, looking at the beautiful young girl before him. She seemed very intellig...tch hotels, I'm worried it's not safe there anymore.""Isn't there a hidden fire escape we could use"Last time, Ah Heng said that if you turn the wall lamp next to the sofa, a fire escape ladder will a...