Pfx
abbr. prefix 前缀，冠字
🗣️ 情景例句
We are going upstairs to set up Grandpa's room.
我们要上楼收拾一下爷爷的房间。
I have two days off a week.
我一周休息两天。
I was being tested for a driving licence for the third time.
我第3次接受驾驶执照考试。