classroom 教室desk 课桌chair 椅子blackboard 黑板white board 白板teacher's desk 讲台schoolbag 书包pencil-case 文具盒computer 电脑door 门floor 地板ceiling 天花板window 窗……人:teacher 老师student 学生...
classroom 教室desk 课桌chair 椅子blackboard 黑板white board 白板teacher's desk 讲台schoolbag 书包pencil-case 文具盒computer 电脑door 门floor 地板ceiling 天花板window 窗……人:teacher 老师student 学生...