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
Their TV news is going to cover it.
他们的电视新闻将报导这一消息。
Fill it up with unleaded and check the oil,please.
请加满不含铅的汽油，并检查一下机油。
We had it after school.
我们放学后开的。