1. Play the lute to a cow?
It is a metaphor for wasting your breath and energy on people who don't understand. It means to look down on each other. Now it is also used to laugh at people who don't look at them.
Source: Han Morong's Theory of Reason and Confusion: "Gongmingyi is the exercise of Niu Qingjiao, which is unheard of by non-cattle."
There was a man named Gong who played quaint piano music for the cow. The cow still buried her head in the grass as before. It's not that the cow doesn't listen, it's the tune that makes its ears uncomfortable.
Second, sweating a lot [hà n niú ch not ng dé ng]?
It means that there are many books, which can fill the whole house when stored, and make cows sweat when shipped abroad. Later, many books described it as "sweating like a pig". Fill it up: Fill it up. Dong: The house.
Source: Zongyuan's Collected Works of Mr. Liu, Volume 9, Mr. Lu's Grave Table: "Although it is a book, it is full of sweat."
There are many books, which can fill the whole house when stored, and make cows sweat when shipped abroad.
Third, Niu Ding roast chicken.
Cook a chicken in the pot where the cow is cooked. Metaphor is overqualified.
Source: The Book of the Later Han Dynasty: "Trust Niu Ding, for cooking chicken. Juicy and light but inedible, less juice is cooked but not cooked. "
Chicken and beef are cooked in a large pot. If you add too much soup, it will be tasteless. If you add too little soup, it will dry.
Fourth, the mud cow enters the sea [ní niú rê h I]?
The mud cow fell into the sea. Metaphor never comes back.
Source: Songshi Daoyuan "Jingde Dengchuan Record" Volume 8: "I saw two mud cows fighting in the sea, and I have not heard from them so far."
5. A cow without eyes?
Metaphor skills have reached a perfect and handy level. It is also a metaphor for not seeing the overall situation.
Origin: According to Zhuangzi's health care master, when a person kills a cow, he sees the whole cow. Three years later, he became proficient. When he used the knife, he only saw the gap between the flesh and the bone, but he could not see the whole cow.