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。
You may rest assured that everything possible is being done.
你可以放心，正在尽力把一切都做好。
You may rest assured that everything possible is being done.
你可以放心，正在尽力把一切都做好。
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