跟他讲这些道理简直是对牛弹琴。
Explaining these principles to him is like playing music to a cow.
Daily Chengyu
对牛弹琴
To cast pearls before swine; explain something to the wrong audience.
Literal Meaning: Play the zither to a cow.
对toward
牛cow
弹play (instrument)
琴zither
Today's Situation
You give a brilliant technical explanation and your friend just stares blankly because they never asked for it.
Perfect Chengyu: 对牛弹琴
Actual Meaning
Use when someone explains ideas to people who cannot or will not understand. The problem is often a mismatch of audience, not the quality of the explanation.
Emotional toneFrustrated, slightly humorous
Usage feelCan sound humorous
FormalityNeutral
English Equivalent
- Cast pearls before swine.
- Talking to a brick wall.
- Wrong audience.
English equivalents capture the general idea, but they may not fit every context exactly.
Modern Usage Example
Explaining blockchain to someone who only wanted dinner recommendations is 对牛弹琴.
Chinese Example Sentences
别对牛弹琴了，他根本不想听。
Stop wasting your breath — he does not want to listen at all.
Origin Story
A musician played elegant music for a cow, but the cow only cared about grass. The audience mattered more than the performance.
When Natives Use It
Good fit
- Education
- Work meetings
- Debates with uninterested listeners
Avoid
- Insulting someone directly to their face
- Formal apologies
Common and vivid. Can sound dismissive, so use carefully in sensitive situations.
- Common in speech
- Common in writing
- Sounds natural today
- Possible but uncommon in casual chat
- More common in writing or commentary
- Use with care — can sound critical
Similar and Opposite Chengyu
Daily Quiz
Which situation best matches 对牛弹琴?
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