not on the map

• [口]办不到的,不为人所知的

not on the map的用法和样例：

例句

1. I'd like to say yes, but it's just not possible.
   我想说行，但是实在办不到。
2. The house needs repairing,but John can't run to it.
   房子需要修理，但约翰在财力上办不到。
3. You can't gamble on the weather in England.
   英国的天气是靠不住的。
4. We are not satisfied with his brittle promise.
   我们对他所做的靠不住的诺言不满意。