Offic
abbr. 官方的（official）；正式地（officially）
🗣️ 情景例句
Hello, thank you very much for coming to my home.
你好，多谢你大驾光临我的寒舍。
Oh! That's all right.
哦，不要紧。
You can never turn the clock back.
时光不能倒流。