a waste of+名词 表示浪费什么什么

a waste of time 浪费时间

a waste of money 浪费金钱

例句：

I think watching TV every evening is a waste of time.

我认为每天晚上看电视是浪费时间。

Don't you think it's a waste of effort to argue about that small thing?

难道你不认为为了那件小事争吵是浪费力气吗?

末尾音乐：

same girl