有一些人说因为在九年级的时候，男孩子开始退学。

And some people say it's because, in 9th grade, boys start dropping out of school.

在九年级时，你心目中的好朋友会和你同赴高年级学生举办的聚会，这样你就不会因为是那里唯一的新生而感到拘束。

In ninth grade, your idea of a good friend was the person who would go to a party thrown by a senior so you wouldn't wind up being the only freshman there.