A4
n. A4型纸（规格为297×210毫米的纸）
🗣️ 情景例句
Most boys like baseball, but he is an exception.
大多数的男孩喜欢棒球，但他是个例外。
The plans are not even made yet.
这计划还不曾有人策划过。
It provides relaxation for leisure hours, as just looking at one's treasures is always a joy.
它可以使人在闲暇中得到休息，因为欣赏自己收藏的珍品总会充满了乐趣。