Constant cost lines
[经] 等成本线
🧩 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;
lines
[[lainz]]
n. 台词
🗣️ 情景例句
Don't mention it.
别在意。
I haven't heard from him for a long time.
我很久没有收到他的信了。
We're going to play football.
我们打算踢足球。