In some cases it may be possible to have more of everything by making different choices; for instance, when an economy is within its production possibility frontier.
在很多情况下，通过不同的选择会获取更多的利益。例如，经济在生产可能性边界内。
In some cases it may be possible to have more of everything by making different choices; for instance, when an economy is within its production possibility frontier.
在很多情况下，通过不同的选择会获取更多的利益。例如，经济在生产可能性边界内。
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