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几何是数学王国中一座美丽的大花园,你如果想带领学生到这美丽的花园观光游玩,就必须解决好四个问题,渡过三道难关。
Geometry is a beautiful large garden in the mathematical kingdom. If you want to lead students to this beautiful garden for sightseeing, you have to solve four problems and pass through three difficult times.