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
What was your speciality?
你学的是什么专业？
If you dance you must pay the fiddler.
要想寻欢作乐，代价非付不可。
Are they new?
是新的吗？