Equi-marginal returns
[经] 平衡边际收益率
🧩 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
returns
[[ri'tə:nz]]
n. 回报；收益；退货（return的复数）
🗣️ 情景例句
That movie received a favorable review.
那部电影受到了好评。
It's my treat this time.
这次我请客！
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。