down the drain

汉语翻译

例句：

1. 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。
2. 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。
3. 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。
4. 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。