眼ㄧㄢˇ高ㄍㄠ手ㄕㄡˇ低ㄉㄧyǎngāo‑shǒudī

  1. 指眼光高而實際能力低。例 「只讀書不實作，難免眼高手低」。

英to have high standards but little ability, to be fastidious but incompetent (idiom)​