Activity cost
[经] 效率成本, 活动成本
🧩 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
Are you kidding?
你在开玩笑吗？
I will be going to school in a few weeks from now.
我将在几个星期后上学去。
There it is!It's in front of your!
那不是么！ 就在你眼前。