Prb
abbr. principal borehole 主钻井
🗣️ 情景例句
Her surgery needs quite a lot of money.
她的手术得花不少钱。
It's just a mosquito bite.There's nothing to worry about.
只是一只蚊子咬的伤口， 不要担心。
Well，it depends.
噢，这得看情况。