Bioaeration
生物通气, 生物充气, 生物曝气法, 活性曝气法
🗣️ 情景例句
I'll think about it and call you back soon, OK?
我考虑一下，回头我尽快打电话给你，好吗？
I'd like two seats on today's northwest flight 7 to detroit, please.
我想订两张今天西北航空公司7班次到底特律的机票。
The world had to wait almost another 100 years for the Channel Tunnel.
世界不得不再等将近100年才看到海峡隧道竣工。