prime cost

basic cost of producing or manufacturingsth (ie the cost of materials and labour) not including such additional items as rent and insurance for premises 主要成本（生产或制造所需的基本费用, 包括材料费和劳务费, 而不包括附加费用如场地的租金和保险金）.

priestlike, priestly, prig, priggish, priggishly, priggishness, prim, prima ballerina, prima donna, prima facie, primacy, primaeval, primal, primarily, primary, primary colour, primary education, primary school, primate, prime, prime meridian, prime minister, prime mover, prime number, prime time, primer, primeval, primeval (also primaeval), primitive, primitively, primitiveness, primly, primness, primogeniture, primordial, primordially, primp, primrose, primula, Primus,