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
That's music to my ears.
正合我意。
Only three days.
仅三天。
Who was first? Who was second? Who was third?
谁是第一？谁是第二？谁是第三？