The stored information includes some obvious items, like education and hobbies, and some not-so-obvious ones, like whether a person is the oldest child.

存储的信息包括一些明显的信息，比如教育和爱好，也有一些不那么明显的信息，比如一个人是不是老大。

She was the oldest child.

她是最大的小孩。

I: Are you the oldest child in your family?

I：你是家中最大的孩子吗？

Are you the oldest child in your family?

你是家中最大的孩子吗？

This money can't be used until the oldest child turns 18.

这笔钱必须等到老大年满十八岁时才能动用。