The metaphor is beautiful, but the detailed explanation always refers to a charlatan who sells a misnomer plaster, but it is actually a lie. The latter metaphor sounds good, but it is actually bragging and not practical. * Political work of the Anti-Japanese War Army: "If the political work of political organs cannot be closely linked with improving the lives and treatment of soldiers, political work will become' selling dog skin plasters'." Zhao Danian's Princess's Daughter VII: "Don't treat me like a child, I don't want to hear you sell dog skin plasters!"
Word decomposition
Plaster is a semi-solid or solid paste at room temperature, which is used to wrap cloth or paper and stick to people for a long time to treat diseases. There are many kinds of plasters, but the most commonly used one is black plaster, also called lead plaster, which is an external medicine of traditional Chinese medicine. It is made by frying plants and blending with lead. Use vegetable oil or animals