Constant marginal cost
[经] 不变边际成本
🧩 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
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
Now Richard and I are having a baby,
现在 Richard和我有了孩子，
To hurry home to his wife
赶回家去见娇妻
Mrs.Bussman commented on the workman's close resemblance to her husband and even suggested that he might be his brother.
巴斯曼夫人说那工人与她丈夫相貌很像，甚至猜测他可能就是她丈夫的兄弟。