waste

That meeting achieved absolutely nothing - it was a complete waste of time.

那次会议根本没有取得什么成果——纯粹是浪费时间。

This city produces 20 million tons of household waste each year.

这个城市每年会产生2000万吨生活垃圾。

His body had been dumped in an area of waste ground just outside the city.

他的尸体被胡乱地抛在了城外的一片荒地里。