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
You forgot to ask me for the change.
你忘了问我要找回零钱。
Could you do me a favor?
我想请你帮个忙。
They had just had enough time to swim out of danger when the boat again completed a circle.
他们刚刚来得及游出危险区，快艇就又转完了一圈。