于事无补 yúshìwúbǔ to no avail Definitions Defs Origin Strokes Stroke Words Sentences Sents 于 於 yú preposition to Indicates the recipient or target of an action; equivalent to 对 duì or 向 xiàng事 shì noun matter matter; affair; thing; event无补 無補 wúbǔ to be of no help to be of no avail or not helping in the least; useless
