down the drain [daun ðə drein]

以下由轻松背单词网站提供

浪费掉，化为乌有，落空

Our plans to go swimming went down the drain when it rained.天一下雨，我们去游泳的计划就全落空了。
The results of years of work went down the drain.多年工作的成果全都白费了。