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儿子是二年级的小学生。从他上一年级开始,我就发现他有一个奇怪的毛病,他很喜欢用橡皮来回擦写错的字,而且总是玩橡皮,
My son is a sophomore. From his first grade, I found he has a strange problem, he likes to use rubber eraser to erase the wrong word, and always play rubber,