Ifo
abbr. 已识别的飞行物（identified flying object）
🗣️ 情景例句
Where can I put the coin?
硬币要放在哪儿？
A good conscience is a continual feast.
白日不做亏心事，夜半敲门心不惊。
Don't forget anything.
别忘了什么东西。