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
The school has a good reputation.
这所学校名誉很好。
Wine and judgement mature with age.
酒存放年代越久越香，判断力随年龄而增长。
Good morning, nurse.I was to see the dentist,please.
早上好，护士。我想见牙科医生。