Ifo
abbr. 已识别的飞行物（identified flying object）
🗣️ 情景例句
Good morning, sir. May I help you?
早安，先生。能为您服务吗？
With my heart in my boots, I went into the dark room.
我战战兢兢地走进那黑洞洞的房间。
Eric had been the eldest son of the family, very much older than his two brothers.
埃里克是这家长子。