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
Frankly, I thought they'd be here, but ...
老实说 我原以为他们会在这儿 但……
Not at all.
当然可以。（当然不介意）
There was a big smile on her face.
她脸上充满笑容。