“驴年马月”怎么样翻译成英语？

donkey 's year and horse's month.

The new motorway won't be ready for donkey's years.
要修好新高速公路，那得等到猴年马月了。
It seemed an eternity before the police arrived.
似乎等到猴年马月警察才来。

驴年马月
year of the donkey and month of the horse—a time that will never come

LUyear horsemonth (*^__^*) 嘻嘻……

donkey 's years