Prime cost
[化] 直接成本; 主要成本
?? 牛津釋義
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（生產或制造所需的基本費用, 包括材料費和勞務費, 而不包括附加費用如場地的租金和保險金）.
?? 詞語組成解析
prime
[pra?m]
adj. 最好的;首要的;最初的;基本的;
n. 精華;初期;全盛時期;青年;
vt. 使準備好;填裝;事先指導;
adv. 極好地;
vi. （為槍炮）裝火藥;涂底漆;修剪樹枝;注水入泵引起;
prim第一，主要的+e → 最初的，基本的
cost
[k?st]
n. 價錢，代價;花費，費用;犧牲;[用復數][法律]訴訟費;
vi. 價錢為，花費;估計成本;
vt. 付出代價;估價;使喪失;使付出努力;
??? 情景例句
Good for you.
我真為你高興。
Do they think PROGRESS means more highways?
他們認為有更多的高速公路就是“進步”嗎？
Assuming that his family had been killed during an air raid, Hans settled down in a village fifty miles away where he had remained ever since.
漢斯以為全家人都在空襲中遇難，于是便在距此50英里外的一座村子里定居下來，直至當日。