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学数学,总是跟数字、公式、图形等等打交道,很是抽象。其实,它们在生活实践中有着广泛的应用。圆锥曲线便是其中一例。
Learning mathematics always deals with numbers, formulas, graphics, etc. It is abstract. In fact, they have a wide range of applications in life practice. One example is the conic section.