Machine maintenance
[化] 机器保养; 机床保养\\n[经] 机器维修
🧩 词语组成解析
🗣️ 情景例句
Notices are displayed on the bus asking people not to smoke.
公共汽车上张贴着请勿吸烟的公告。
If you wouldn't mind, I could use a hand.
如果你不介意的话，我可能要你帮个忙。
You must look after it. Give it to Mr. Hu.
你一定要好好保管啊！让胡老师帮你拿着。