Hff
abbr. horizontal falling film 水平降落液膜
🗣️ 情景例句
Absolutely right, Frank.
完全正确 ，Frank。
I have received a letter from my cousin.
我收到了我表兄的信。
Well, yes, I could do that. But I don't want to do anything alone.
哦，好，这事我能办。但我又不想一个人做事情。