Uff
abbr. 里约州联邦大学（Universidade Federal Fluminense）；通用文件格式（Universal File Format）；超滤衰竭（Ultra Fihration Failure）
✅ 同义词
🗣️ 情景例句
But Dad was so exhausted when he came home from work.
但爸爸工作回来时已经累得不得了了。
Yes, you can. Would you please show me your card?
可以，让我看看您的卡。
I'm afraid I'm still not very good at it, though.
不过，恐怕我的汉语还是不够好。