超级简单英语阅读:An Ear Problem（在线收听）

His ear had a tiny air bubble in it. It bothered him a lot. He could hear an echo when he talked. The echo bothered him a lot. He tried to get rid of the tiny air bubble. He squeezed his nose, closed his mouth, and blew really hard. Nothing happened. He shook his head like a wet dog. Nothing happened. He stood on his head for 10 minutes. Nothing happened. He stuck his finger deep in his ear and pulled it out quickly. Nothing happened. The doctor gave him nose drops. Nothing happened. The doctor gave him ear drops. Nothing happened. He took a walk on a winter day. He slipped on the ice. He hit his head on the sidewalk. The bubble was gone!