Microfloras
(microflora 的复数) [医] 微[生]植物区系, 微植物丛
🗣️ 情景例句
I think it's too easy.
我觉得它太简单了。
The air conditioner is out of order.
这空调坏了。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。