Efc
abbr. earth fixed coordinate 固定坐标系; electronic feedback carburetor 电子反馈汽化器; engineered for color 彩色（电视机）工程; Evergreen Fir Corporation (initials) 常青枞树公司（组织名称的第一个字母）
🗣️ 情景例句
Your show doesn't begin until eight thirty.
你的展览八点半才开始。
In face, I am still not sure if I really deserve this honor.
事实上，我还是不敢确信我是否真的堪当这个奖赏。
Are you going to make another?
您准备再拍一部吗？