鞭长莫及

biānchángmòjí

鞭长莫及 — biānchángmòjí

1. lit. the whip cannot reach (idiom); beyond one's influence; too far to be able to help

   他想帮忙但鞭长莫及。 tā xiǎng bāngmáng dàn biānchángmòjí — He wanted to help but was beyond his reach.