Df
[计] 数据区, 目的区, 设备标志, 磁盘文件, 倍频
🗣️ 情景例句
Keep your nose to the grindstone; you'll succeed.
埋头苦干，总有成功的一天。
Absence sharpens love, presence strengthens it.
相聚爱益切，离别情更深。
John works very hard. He goes to work early.
约翰工作很努力。他早早上班。