你这段话是(麦田里的守望者)Amazon.com的书评,你只取一句来不好理解,拿一段来就好了
"If you really want to hear about it, the first thing you''ll probably want to know is where I was born and what my lousy childhood was like, and how my parents were occupied and all before they had me."
如果你真得想听的话,那么首先你很可能想知道我出生在哪里,我的童年怎样的糟糕,我的父母又是怎样的忙碌以及所有他们有我之前的事情.
be occupied(in doing sth)是固定用法,忙于...
开始我被那个and all弄晕了,看了上下文才知道.