Ifo
abbr. 已识别的飞行物（identified flying object）
🗣️ 情景例句
I was. But not in high school.
说的对。但高中时不好。
If you sign this contract all of your financial worries will be over!
如果你在这份合约上签字，你就和金钱的劳累一刀两断了。
We have special river birthday parties in the summer.
夏天，我们为这条河举办特殊的生日宴会。