Prb
abbr. principal borehole 主钻井
🗣️ 情景例句
I think that all Chinese word hard and cherish their famillies.
我认为所有的中国人都工作勤奋而且十分关心家人。
Did you paint this yourself?
你自己亲自油漆这个？
A man was lying in the box on top of a pile of woolen goods.
箱内有一个人正躺在一堆毛织品之上。