Mainlaying cost
[化] 管道装设费用
🧩 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
Did she mention when she would arrive?
她说过什么时候到吗？
He that once deceived is never suspected.
一次行诈骗，永远遇疑嫌。
Six hundred years ago,
600年前，