F-number
n. 数, 光圈数
🧩 词语组成解析
🗣️ 情景例句
Thanks for all your hospitality.
谢谢你的感情招待。
First, I coundn't keep up with all the paperwork at the office.
首先我应付不了办公室的文书工作。
I can't afford to go to a restaurant every day.
每天都去餐馆吃饭，我真是支付不起。