love letter

US /ˈlʌv ˌlet.ər/
UK /ˈlʌv ˌlet.ər/
"love letter" picture
1.

情书

a letter expressing one's love or affection for another person

:
He wrote her a beautiful love letter every week.
他每周都给她写一封美丽的情书
She found an old love letter hidden in a book.
她在书里发现了一封旧情书