when a book is copied thrice , some characters become alike
Wu Yan Cheng Ma, a Chinese idiom, is pronounced w ū y ā NCH é NGM ǎ, which means that the characters are wrongly written because of their similar shape. It comes from Zhou Li, Tianguan and xiuren.
The origin of Idioms
In Zhou Li Tian Guan sew Ren, "mourning, sew coffin and adorn it." Han Zheng Xuan's note: "the old book Yan is a horse, and Du Zichun said," it should be Yan. "
Idiom usage
It refers to the wrong word example the word has been written three times, ~. The fourth volume of Guangyang Zaji by Liu Xianting in Qing Dynasty
when a book is copied thrice , some characters become alike
you cannot sell the cow and drink the milk - yú yǔ xióng zhǎng
Hold the comet to put out the fire - yōng huǐ jiù huǒ
a great ability to rule the country - jīng shì zhī cái
hasten out of the house in a great rush - duó mén ér chū
promote one 's private interests under the guise of serving the public - jiǎ gōng yíng sī