Ufs
(uf 的第三人称 -s形式) abbr. 脲甲醛树脂；超声频率（Ultrasonic Frequency）
🗣️ 情景例句
It's lovely, Robbie.
它非常可爱，Robbie。
There are as good fish in the sea as ever came out of it.
海里的好鱼是取之不尽的。
He insisted on the assistant's counting the money before he left -- 30,000 pennies in all!
这些硬币加在一起共有30，000枚！