Bioaeration
生物通气, 生物充气, 生物曝气法, 活性曝气法
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
No one can disgrace us but ourselves.
除非羞耻自由取，他人岂能辱吾？。
Jasper has put up 'No Parking' signs outside his gate, but these have not had any effect.
贾斯珀曾把几块“禁止停车”的牌子挂在大门外边，但没有任何效果。