对于这样一个责任重大的职位，你太年轻了。

You are too young for such a responsible position.

《柯林斯英汉双解大词典》

更重要的是，你可以做一切你现在不能做的事，因为你太年轻了。

More importantly you can do all those things that you cannot do now because you are too young.

youdao

希礼：你太年轻和单纯了，根本不懂什么是婚姻。

ASHLEY: you're so young and unthinking, you don't know what marriage means.

youdao

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