反義詞是waste，例如：

1.In my view it was a waste of time.依我看，這是浪費時間。

2.It's a waste of time and energy.那是浪費時間和精力。

3.The car was found on a piece of waste ground.那輛車是在一塊荒地里發(fā)現(xiàn)的。

4.What a waste of paper!多么浪費紙啊。