But at the level of the aggregate economy, we are wasting one of our most precious resources.

但从总体经济层面上看，我们正在浪费我们最宝贵的资源之一。

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By the end of last year, the aggregate size of the Chinese economy has become the world's forth largest.

截至去年底，中国经济总量已升至世界第四位。

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Aggregate demand is the value of the total of planned expenditures in an economy.

总需求是指一种经济中计划支出总额的价值。

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The nation's labour laws are arcane and in need of change (which could help workers even more than the aggregate economy).

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For instance, GDP growth is a result of (in addition to population growth) the income reinvestment rate in the economy multiplied by the rate of return on that reinvestment (or the aggregate ROIC in the economy).

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By definition, people need it, and so it re-circulates in the economy and it has an effect of boosting aggregate demand and helping the economy grow.

WHITEHOUSE: President Obama Speaks to Town Hall Meeting at University of Maryland | The White House