prime cost
柯林斯词典
1. N the portion of the cost of a commodity that varies directly with the amount of it produced, principally comprising materials and labour 主要成本 (Also called variable cost)→compare overheads
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1. N the portion of the cost of a commodity that varies directly with the amount of it produced, principally comprising materials and labour 主要成本 (Also called variable cost)→compare overheads