down the drain

浪费掉, 化为乌有, 落空

例句与用法：

If you leave college, all that money has gone down the drain!

你要是中断大学的学习，你花的钱就会都付诸东流了。

My wife wanted a new carpet in the living room, but as we are moving in six months it would only be money down the drain.

我妻子想起居室里换块新地毯，不过我们再过6个月就要搬走，那只是白白浪费钱财。

A single mistake and all that time and money would go down the drain.

只要发生一个错误，全部的时间和金钱就将尽付东流。

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。

词形变化：

异体字: Down's syndrome |

详细释义：

ph.

前功尽弃；付诸东流；化为泡影