mess around

 消磨日子、混日子、摆烂

►含义：

to waste time and dawdle along 

浪费时间，游手好闲，磨洋工

►例句：

Some young people simply mess around all day when they are supposed to be at school.

一些年轻人不在学校学习却整天游手好闲消磨时光。

►对话：

A: I was suffering from insomnia yesterday,  I can't work efficiently at all.

我昨晚失眠了，我现在工作一点效率都没有。

B: If you keep messing around, none of us are going home today.

如果你再磨洋工下去，我们今天谁都别想回去了。

►额外收获： 

1.dawdle along: 磨洋工，缓慢进行

2.be supposed to: 应该

3.insomnia: 失眠

4.efficiently: 有效率的