Decremental cost
[经] 减量成本, 减支成本
🧩 词语组成解析
减少
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
Please wait for me. I won't be long.
清等等我，就一会儿。
To swing
打秋千
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。