Specific cost
[经] 专一成本, 特定成本
🧩 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
Now for the hard part.
现在到了最难的部分。
What is done by night appears by day.
若要人不知，除非己莫为。
he could no get his arm out.
他的胳膊反倒退不出来了。