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
Where's the bookstore?
书店在哪？
I would like to place a station-to-station call.
我要打一个叫号电话。
I must finish that first. But I think I can be free at six. May I come then?
00可能有空。我那时来可以吗？