Biofiltration
生物过滤(作用)
🗣️ 情景例句
Would you be able to come over Saturday night?
星期六晚上能过来吗？
Fear not the future; weep not for the past.
不要为未来担忧，不要为过去悲泣。
We hope that the next negotiation will be the last one before signing the contract.
我们希望下一交谈判将是签订合同前的最后一轮谈判。