A3
n. A3号纸（尺寸为420×297mm的）
🗣️ 情景例句
You said you have family in New York.
你说你在纽约有亲人。
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
Why didn't you tell me then?
为什么那时不告诉我呢？