It kind of reminds me of the symmetrical paintings I did at primary school where you painted one side then folded the paper in half.
它让我想起我在小学时画的那些对称画，只需画一边，再对折起来就完成另外一边了。
Cauchy's inequality is characterized by its structurally symmetrical grace, which finds wide application in middle school algebra, geometory, plane geometory and analytic plane geometry.
其结构对称优美，在中学代数、三角、平面几何、平面解析几何中都有广泛应用。
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