Peter Gleick: Twenty five years ago in the United States, each American probably drank a gallon of bottled water a year, on average.
皮特•格莱克：25年前，美国人每年人均瓶装水的饮水量大概是1加仑。
Peter Gleick: Twenty five years ago in the United States, each American probably drank a gallon of bottled water a year, on average.
皮特•格莱克：25年前，美国人每年人均瓶装水的饮水量大概是1加仑。
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