Udf
abbr. 南非民主统一战线（United Democratic Front）；通用磁盘格式（Universal Disk Format）
🗣️ 情景例句
I'm counting on it.
我有这种打算。
You'll never be able to fill your father's shoes.
你永远也替不了你父亲的工作。
Once he had done this, he had been able to turn on the supply.
一旦他接上了接头，他就能够打开供气阀。