Bpu
abbr. base production unit 基础生产单位; bus protection unit 公共汽车保护单位
🗣️ 情景例句
I came home a little while ago.
我也是刚刚到家。
Where the knot is loose the string slips.
结子一松掉，绳子就滑脱。
Don't worry. I can help him.
不用着急，我来帮他。