对牛弹琴

duìniútánqín

HSK 7

对牛弹琴 — duìniútánqín

1. lit. to play the lute to a cow; fig. to offer something to an unappreciative audience; to cast pearls before swine; to preach to deaf ears

   跟他讲这些复杂的道理简直是对牛弹琴。 gēn tā jiǎng zhèxiē fùzá de dàolǐ jiǎnzhí shì duìniútánqín — Explaining these complicated principles to him is simply like playing the lute to a cow.