「打水漂」英文怎么说？

(go) down the drain 

打水漂、付诸东流、白白浪费掉（时间、努力或金钱）

Well，that's it ! 18 months' work down the drain. 

哈！这回可好了！18个月来的工作就白干了。

All of our savings have gone down the drain ever since my husband had his little gambling spree in Macao. 

自从我老公去了澳门小尝了一次「豪赌」以后，我们两的积蓄就打了水漂了。