如此规模的可用收入的减少对美国家庭是个沉重的打击。

A decrease of this magnitude in available income is a heavy blow.

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我们比其他旅游者有更多的可用收入和更长的旅游时间。

We have more discretionary income than most other travelers and more time to spend it.

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贫困的家庭平均要把可用收入的50 - 75%用于食品。

Poor households spend, on average, from 50-75% of disposable income on food.

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