A3
n. A3号纸（尺寸为420×297mm的）
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
He is unfortunate who cannot bear misfortune.
不能承受不幸的就是不幸。
Many families spend this at a cottage by the seaside or go camping in the hills or on the coast.
许多家庭会在海滨的小屋里度过这段时光，或到小山坡上或在海岸边野营度假。