Uf
abbr. 脲甲醛树脂；超声频率（Ultrasonic Frequency）
🗣️ 情景例句
Something's wrong.
有点不对劲。
I was on the track team 10 years ago.
十年前，我在田径队。
OK. I'll ring you if I have any news.
好吧。一有消息我就给你打电话。