Dfd
abbr. 数据流程图（Data Flow Diagram）；数据功能图（Data Functional Diagram）；数字飞行显示器（Digital Flight Display）；数字频率显示（Digital Frequency Display）
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
Have but few frieds,though many acquaintances.
结交可以多，朋友应宜少。
He has a sense of humor.
他有幽默感。