Efficiency cost
[经] 效率成本
🧩 词语组成解析
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
By the way,
顺便问一声，
Who is the chief of sate of this nation?
谁是这国家的领袖？
I don't know his number. Did you write it down?
我不知道他的电话号码。你记下来了吗？