the grass is always greener on the other side.这句话的意思是什么?（英语不

The grass is always greener/这山望着那山高
和这个惯用语基本相当的中文说法是“这山望着那山高”。意思就是说得不到的总是看起来更诱人一些,总是比已经拥有的好。常常只说The grass is always greener,而省略后面的on the other side of the fence。
比如说,刚开始你觉得没男朋友挺好,自由自在,but when you haven’t been out for a while you may start to envy of Grace’s dates with her handsome boy。:-) Oh well,the grass is always greener。是不是呢?
Example Dialog:
Sandra:How are things going with your new job?新工作做的怎么样?
Lisa:Not bad。But not as wonderful as I’d expected before I secured it。还不错。但没我上班前想得那么好。
Sandra:Well,I understand that。You know,the grass is always greener。是啊,我理解,还没得到一件东西时总觉得它很诱人。