Decreasing marginal cost
[经] 递减边际成本
🧩 词语组成解析
decreasing
[di'kri:siŋ]
adj. 减少的，渐减的;
v. （使）缩短，减小，减少( decrease的现在分词 );
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
I have to cram all night for tomorrow's exams.
为了明天的考试，我得熬夜临阵磨枪。
He was shocked by Ted's darling words.
他为泰德厚颜无耻的话受了打击。
The inspector then asked the old lady to try to check what was missing by the next day and advised her not to stay alone in the flat for a few nights.
巡官请老妇人在次日之前设法查清丢了些什么，并劝她几夜之内不要独自一人在公寓过夜。