Marginal efficiency of investment
[经] 投资的边际效率
🧩 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
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
You probably heard about it. We have private teachers in our holiday.
或许你已经听说过。我们交大的学生在假期间做家教。
Why are you so scared? I don't bite.
我又不咬人，干嘛那么怕我？
If it is not, and you are likely to get seasick, no form of transport could be worse.
如果大海肆虐起来，你就可能晕船，那种难受劲儿是任何一种别的旅行的方式都不会带来的。