不是他对你抱有成见，只是他不认识你。

It's not personal, he just does't know you.

youdao

你一定不认识他。

You wouldn't know him.

《柯林斯英汉双解大词典》

你愿出庭起誓说你不认识他吗？

Are you willing to stand up in court and swear that you don't recognize him?

《牛津词典》

There is a kind of cultural myth around the stranger, the person you don't know, who you will--who you fall in love with.

可能对陌生人有一种文化迷思，你不认识他，却将要爱上他。

耶鲁公开课 - 心理学导论课程节选

You don't know because you're too young.

你不认识他是因为你太年轻了。

耶鲁公开课 - 心理学导论课程节选