Maintenance instruction manual
[化] 保养说明书
🧩 词语组成解析
🗣️ 情景例句
You must've come home very late.
一定很晚才回家。
What would you like to do this weekend?
这周末你打算做什么？
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。