Examples

这是项突击任务，人少了不济事。

This is a shock task. It'll be no good to be short of hands. → 不济事

空谈不济事。

Empty talk doesn't help matters. → 济事

你这点儿钱根本不济事。

This is simply not enough money to be of any use. → 济事

他去了也不济事。

It won't be of any use even if he does go. → 济事

着急也不济事，还是慢慢想办法 → 不济事

眼睛越来越不济事了 → 济事

空谈不济事，必须动手实干。 → 济事