单词	pennyweight
释义	pennyweight /ˈpɛnɪweɪt / noun A unit of weight, 24 grains or one twentieth of an ounce troy.Gold is measured using troy weights (as opposed to the more familiar avoirdupois weights): 24 grains make a pennyweight, and 20 pennyweights make a 31.1-gram troy ounce.... Both agreed there was gold - one suggesting up to two and a half ounces per ton of quartz, the other ‘equal to one ounce eleven pennyweights per ton.’ They are each to be of the value of half a cent, and to contain five pennyweights and a half a pennyweight of copper.
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