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
They're in my bag.
在我袋子 。
I cannot hear the tape.
这卷录音带什么都听不到。
Would you like me to demonstrate it for you?
要不要我来为你示范一下？