Idf
abbr. 综合资料文件（intergrated Data File）
🗣️ 情景例句
We're right behind you.
我们都支持你。
Yesterday, Mom weeded the entire garden.
昨天，妈妈铲除了花园里面的杂草。
Suddenly she asked her father why he kept so many old newspapers locked away there,
她突然问父亲为什么把这么多的旧报纸锁在柜子里，