对牛弹琴

HSK 7-9

duìniú-tánqín

talk over one's head; address someone who doesn't understand (lit. play music to a cow)

跟他讲这些是对牛弹琴

gēn tā jiǎng zhèxiē shì duìniú-tánqín

Telling him these things is like talking to a cow

你解释再多也对牛弹琴

nǐ jiěshì zài duō yě duìniú-tánqín

No matter how much you explain, it's like talking to a cow

别对牛弹琴了

bié duìniú-tánqín le

Stop wasting your time