Fac
abbr. 空军前进引导员（forward air controller）；联邦咨询委员会（Federal Advisory Council）；联邦航空委员会（Federal Aviation Commission）
🗣️ 情景例句
when I was about eighteen years old.
那时我差不多十八岁。
What do you like best, apples, pears, or bananas?
苹果，梨，香蕉，你最喜欢哪个？
During a holiday in Sweden, I found this note on my car: 'sir, we welcome you to our city.
“先生，欢迎您光临我们的城市。