puppy love
US /ˈpʌp.i ˌlʌv/
UK /ˈpʌp.i ˌlʌv/

1.
初恋, 少年恋情
romantic love, often intense but usually short-lived, felt by young people
:
•
Their relationship was just puppy love; it didn't last long.
他们的关系只是初恋;没有持续多久。
•
She thought it was true love, but her parents called it puppy love.
她以为那是真爱,但她的父母称之为初恋。