Upf
abbr. unilateral pulmonary function 單側肺功能; user port function 用戶端口功能; universal picture format 通用圖像格式; United Plastic Fabricating 塑料制品制作聯盟
??? 情景例句
How did you get on in your exam?
你考得怎樣？
Roll my log and I'll roll yours.
互相吹噓。
Not today. Come back tomorrow!
“今天不行，明天再過來吧！”