Uf
abbr. 脲甲醛树脂；超声频率（Ultrasonic Frequency）
🗣️ 情景例句
But if you think you should take the job, we're behind you.
但如果你认为你应该接受这份工作， 我们支持你。
My head has been hurting.
我头痛。
There is space for summer picnics, open-air concerts, plays and games.
这儿有空旷的地方，供作夏日野餐、露天音乐会、各种娱乐和竞赛之用。