於事無補 yú shì wú bǔ

DEFINITIONS

  1. unhelpful
  2. useless

CHARACTERS

於 yú in, at, on; interjection alas!
事 shì
HSK 2
affair, matter, business; to serve; accident, incident
無 wú negative, no, not; lack, have no
補 bǔ mend, patch, fix, repair, restore