A3
n. A3号纸（尺寸为420×297mm的）
🗣️ 情景例句
Just relax.
不用紧张。
I'm reading the newspaper downstairs.
我在楼下看报纸。
On the day before our departure, several bus loads of tourists descended on the town.
我们离开小镇的前一天，镇上来了几辆满载游客的公共汽车。