封
fēng
(measure word for letters); to seal; to confer
In a story
信封里边,是一封信和两张三十年前的火车票。Inside it: a letter, and two train tickets from thirty years ago.妈妈的秘密 · Mother's Secret · HSK 3
胡青低下头,过了很久才说:“我有一封信,想自己看。”Hu Qing lowered her head, and it was a long while before she said, “I have a letter that I want to read myself.”狐狸学字 · The Fox Who Learned to Read · HSK 5

Learn it in the app
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