Df
[计] 数据区, 目的区, 设备标志, 磁盘文件, 倍频
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
Excuse me I don't know.
对不起我不知道。
Don't you dare come back again!
你敢再回来！