初恋在英语中可以称为"first love"。这个词来源于拉丁语的"primus"，意思是"第一"，以及英语的"love"，意思是"爱"。

例句：

I will never forget my first love. 我永远不会忘记我的初恋。

She was his first love, and he still thinks about her all the time. 她是他的初恋，他现在还会一直想着她。

He has had many girlfriends, but no one can replace his first love. 他有过很多女友，但没有人能够取代他的初恋。