Maintenance and overhaul
[化] 保养与大修
🧩 词语组成解析
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
🗣️ 情景例句
A real dilemma.
一个大伤脑筋的事。
The more haste, she less speed.
欲速则不达。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。