Filtration underground
[医] 地下过滤
🧩 词语组成解析
n. 过滤\\n[化] 过滤
🗣️ 情景例句
That's not it.
不是这种事。
My intentions were good.
我是好意。
The pilot managed to circle the balloon for some time.
飞行员设法绕着气球飞了一阵。