Pfd
abbr. 程序流程图（Process Flow Diagram）；主飞行显示（Primary Flight Display）；个人漂浮设备（Personal Flotation Device）
🗣️ 情景例句
Now, tell us something about your trip.
好，跟我们说说你的旅行。
Tea, please.
我喝点茶吧。
I have heard of writers who read nothing but their own books;
我听说一些作家，除了自己的书外，别的书一概不读，