Mainlaying cost
[化] 管道裝設費用
?? 詞語組成解析
cost
[k?st]
n. 價錢，代價;花費，費用;犧牲;[用復數][法律]訴訟費;
vi. 價錢為，花費;估計成本;
vt. 付出代價;估價;使喪失;使付出努力;
??? 情景例句
Where will we put all the presents?
我們把這些禮物放在哪里？
One good head is better than a hundred strong hands.
上百雙有力的手，不如一個聰明的頭腦。
I didn't know she could swim. Who taught her?
我不知道她會游泳。誰教她的？