Operation and maintenance
[化] 使用和维护
🧩 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
You're right.
你说的对。
The sales of our products have grown astronomically.
我们的产品销售量获得了极大的增长。
This was later confirmed by naval official at the Ministry of Defiance after the Elkor had returned home.
这一说法在“埃尔科”号返航后得到的国防部一位海军官员的证实。