Idf
abbr. 综合资料文件（intergrated Data File）
🗣️ 情景例句
Hi, this is Tony, I have a flat tire, could you come and pick me up?
你好，我是托尼，我的车爆胎了，你能来接我吗？
Saying and doing are two things.
说与做是两回事。
I'll try my best.
我尽力而为。