My classroom我的教室

This is our classroom, which is a nice big room.The windows are big and the walls are white. There is a blackboard on the front wall. On the back wall there is a map, which is a map of China.In front of the blackboard there is a big desk, it is for the teacher.There are forty small desks and chairs in the room. They are for us studens. What's on the teacher's desk? There are some flowers.
【参考翻译】
这是我们的教室,这是一个漂亮的大房间。窗户大,墙壁是白色的。在前面的墙上有一块黑板。在后面的墙上有一张地图,这是一张中国地图。在黑板前面有一个大桌子,是老师的讲台。有四十个小桌子和椅子在房间里。他们是为我们学生。老师的桌子上是什么?那是一些花。