Prb
abbr. principal borehole 主钻井
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
He admitted his guilt to the police.
他向警方承认犯罪。
I see. I hope everything goes well. Bye!
我明白了。我希望你一切顺利。再见。