Opportunity cost principle
[经] 机会成本的原则
🧩 词语组成解析
opportunity
[ˌɑpɚˈtunɪti, -ˈtju-]
n. 机会;适当的时机良机;有利的环境，条件;
op=ob靠近 + portun=harbor港口+ ity 表名词 → 向港口靠近 →机会
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 hate animals, they smell and they're noisy.
我讨厌动物，它们很臭而且很吵。
We have a wide selection of sweaters that will appeal to all ages, and in particular the teenager market which you specified.
我们有各种各样适合各个年龄层次的羊毛衫，特别是您专门提到的青少年市场。
He is used to eating out all the time.
他已经习惯在外面吃饭了。