Figure 1: Reduced costs, constant return.

图1：成本降低，利润不变。

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Functions that return objects remain constant.

返回对象的函数保持不变。

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If not, then it is just a constant value, so return it.

如果不是，那么它只是一个常量值，所以要返回它。

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Figure 2: Constant cost, increased return.

图2：成本不变，利润增加。

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Figure 2: Constant cost, increased return.

图2：成本不变，利润增加。

youdao