... Signal power density spectrum信号功率密度谱 Purchasing power of the dollar美元购买力 Secondary electric power supply二次电源 ...
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美国经济学家们对美元购买力的下降表示担心，因为这会加剧通货膨胀。
U. S. economists deplored this decline in the purchasing power of the dollar because it tended to exacerbate inflation.
但即使美元购买力增强，那些没有工作，特别是没有储蓄，负责任的消费者也不会把钱花在非必需品上。
But even if a consumer dollar buys more, responsible people without jobs, and especially those without savings, don't spend on nonessentials.
无限制排放温室气体可能造成冰山溶解，无限制排放美元一定会造成美元购买力熔毁，美元的命运掌握在国会诸公手中。
Unchecked carbon emissions will likely cause icebergs to melt. Unchecked greenback emissions will certainly cause the purchasing power of currency to melt. The dollar's destiny lies with Congress.
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