Hayley教口語，“對牛彈琴”用英語怎么說？

to offer something valuable or good to someone who does not know its value

把有價(jià)值的東西給不識(shí)貨的人;明珠暗投，對牛彈琴

這個(gè)表達(dá)出自《圣經(jīng)》。在這部分圣經(jīng)中，耶穌給出了以下話語。

Do not give what is holy to the dogs; nor cast your pearls before swine, lest they trample them under their feet, and turn and tear you in pieces.

不可把圣物給狗;也不要把你們的珍珠丟在豬前，恐怕他們把珍珠踩在腳下，轉(zhuǎn)過來再把你們撕碎。

這就是說不要與那些會(huì)濫用它的人分享你寶貴的東西。

I'm afraid you're casting pearls before swine with your good advice - he won't listen.

恐怕你給他忠告就好比對牛彈琴——他不會(huì)聽的。