Cascade aerator
[化] 阶式曝气装置
🧩 词语组成解析
[化] 曝气器; 曝气装置\\n[医] 曝气池; 充气器, 灌气器
🗣️ 情景例句
and you've got to do one more thing.
而且你还要做一件事。
When three know it, all know it.
三人知，天下晓。
Of course.
当然可以。