By living abstemiously on other fronts, she said she had managed to keep her carbon footprint to half that of the average American.
有时候也住在其他的地方，她说她的足迹已经遍及平均一半的美国人家。
The two authors define the middle class abstemiously, as those who spend $2-10 a day, measured in 1993 purchasing-power-parity dollars.
两位作者发现这些中产阶层非常节俭，因为对比1993年美元购买力平价，他们每天生活仅仅花费2- 10 美元。
The two authors define the middle class abstemiously, as those who spend $2-10 a day, measured in 1993 purchasing-power-parity dollars.
两位作者发现这些中产阶层非常节俭，因为对比1993年美元购买力平价，他们每天生活仅仅花费2- 10 美元。
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