teach orally
Word of mouth, a Chinese idiom, pronounced K ǒ u ě RXi ā ngchu á n, means to teach from mouth to ear. From the outline of the history of Chinese literature.
Idiom usage
It refers to the oral teaching.
The origin of Idioms
The first chapter of Lu Xun's outline of the history of Chinese Literature: "pass it on by word of mouth, or catch later generations.".
teach orally
be somewhat refined in one 's rough way - cū zhōng yǒu xì
The same thing as the same thing - zhǐ shì lèi qíng