| 单词 | 通常等于 |
| 释义 | 〔butt〕A unit of volume equal to two hogsheads, usually the equivalent of 126 U.S. gallons (about 477 liters).大酒桶的容量：等于两桶之容量的一种容量单位，通常等于126美国加仑（约477升）〔firkin〕Any of several British units of capacity, usually equal to about ¼ of a barrel or 9 gallons (34 liters).英国的一种容量单位，通常等于¼桶或9加仑（合34升）〔parasang〕An ancient Persian unit of distance, usually estimated at 3.5 miles (5.6 kilometers).巴拉尚：古波斯的一种长度单位，通常等于3.5英里(5.6公里）〔point〕A unit of academic credit usually equal to one hour of class work per week during one semester.学分：学分的单位，通常等于一学期中每周的一个课时 |
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