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说起武侠小说,肯定有许多同学立刻就会兴奋起来,特别是好动的男生。今天,我要给你们介绍的这位科学家爷爷也是一位武侠小
Speaking of martial arts novels, there are certainly many students will be excited immediately, especially the restless boys. Today, I am going to introduce to you the grandfather of a scientist who is also a martial arts man