今天，我们继续来学习shack up引申出来的意思。

它的引申义为：to be in a sexual relationship with someone; to live or reside with someone in a sexual relationship. 例如：

1. He was looking for a dame to shack up with when the police picked him up.（他正在找女人鬼混的时候，警察把他逮住了。）

2. My parents still disapprove of our shacking up together before we're married. They're a little old-fashioned that way.（我的父母不同意我们婚前同居，他们有点过时了。）

要点解:1：disapprove of 的意思是“不同意某人做某事”。例如：I disapprove of ladies' smoking.（我反对妇女抽烟。）
要点解析2：that way的意思是“那样”。例如：No doubt it hadn't been sensible to clutter up his life that way.（当然，把生活安排得象他那样乱七八糟是很不明智的。）

我们再来看一个小对话：

A: I haven't seen Beth in a while.（我有一阵子没有看到Beth了。）

B: She's been shacking up with some hotshot lawyer. She started dating a few weeks ago.（她一直和一个厉害的律师同居在一起，几周前，她就开始约会了。）