Upf
abbr. unilateral pulmonary function 单侧肺功能; user port function 用户端口功能; universal picture format 通用图像格式; United Plastic Fabricating 塑料制品制作联盟
🗣️ 情景例句
for a long time,
很久了，
Today English is the international language of business and trade.
如今英语是商务和贸易的国际性语言。
Though he owned a large car,
尽管他有一辆豪华小轿车，