Ifo
abbr. 已识别的飞行物（identified flying object）
🗣️ 情景例句
I'm writing an article on the feelings about graduation.
我在写一篇关于毕业感想的文章。
I've never read a more thrilling story.
我没有读过比这更令人战粟的故事。
They devise hundreds of competitions which will enable us to win huge sums of money.
他们设计数以百计的竞赛，竞赛中有人可赢得巨额奖金。