I have a small bedroom.There are only a small bed,a small desk and a small chair in the room.And there is a beautiful doll on my blue bed.Everyday I do my homework,read books and play games with
你的意思是用英语问你关于科学的问题?如果是,看下面:1.Briefly explain the principle behind a telescope (请简单解释天文望远镜的原理)2.Explain hydraulic action (解释水压力)3.What is the definition of pressure