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如果把一堂堂数学课比作一次次思维的远足,那么,在这个长途跋涉的旅途中,沿途便会不时地出现“阴错阳差”“节外生枝”“灵光一闪”的“意
If you compare a math class with a second thought, then during this long journey, there will be occasional ”mistakes“ and ”exaggerations" meaning