N-COUNT
加侖（液量單位，1加侖等于8品脫，英制等于4.564升，美制等于3.785升）
A gallon is a unit of measurement for liquids that is equal to eight pints. In Britain, it is equal to 4.564 litres. In America, it is equal to 3.785 litres.
例句
...80 million gallons of water a day.
每天8千萬加侖水
...a gasoline tax of 4.3 cents a gallon.
每加侖4.3分的汽油稅