Marginal prime cost
[经] 边际主要成本
🧩 词语组成解析
marginal
['mɑrdʒɪnl]
adj. 边的，边缘的;旁注的;临界的，最低限度的;收入仅敷支出的;
margin边缘 + al 表示属于...的、具有...性质的、如...的 → a.微小的,不重要的;仅以微弱多数票获胜的;记在页边的
prime
[praɪm]
adj. 最好的;首要的;最初的;基本的;
n. 精华;初期;全盛时期;青年;
vt. 使准备好;填装;事先指导;
adv. 极好地;
vi. （为枪炮）装火药;涂底漆;修剪树枝;注水入泵引起;
prim第一，主要的+e → 最初的，基本的
cost
[kɔst]
n. 价钱，代价;花费，费用;牺牲;[用复数][法律]诉讼费;
vi. 价钱为，花费;估计成本;
vt. 付出代价;估价;使丧失;使付出努力;
🗣️ 情景例句
Oh! Good afternoon. Mr. Wilson, I'm sorry, but he's not in. He's gone out on business.
哦，您好！威尔逊先生。很抱歉，他不在家，他出差了。
How can you do such a thing?
你怎么能做这种事情呢？
It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner with would make a modern climber shudder at the thought,
确实，在探险中他们经常遇到惊心动魄的困难和危险，而他们装备之简陋足以使现代登山者一想起来就胆战心惊。