经济学家建议建议的税收体系具备三个特征：一定是累进税，也就是说将向富裕阶层征更多的税；征税不应因收入方式不同而加以区别；税收体系趋向简单化。

The economists propose a tax system with three main features.

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个人收入是按累进税主征税的。而且我们有一个税率表。告诉你多少收入要征多少税。

Personal incomes are taxed a graduated rates, and we have a tax table which tells you how much tax's required on what amount of money earned.

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They did it again, even more decisively in World War Two, and that's how we got progressive taxes.

而二次世界大战时，他们毫不犹豫的，再次提高了对富人的征税，这就是累进税的由来。

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