Uasb
abbr. upflow anaerobic sludge blanket 升流式厌氧污泥床
🗣️ 情景例句
You won't forget, will you?
不会忘记吧？
How are you today?
今天还好吗？
We can make the price lower if you would order a bit more.
如果你单子下多一点，我们可以减价。