the mouth speaking and fingers sketching -- explain by means of illustration or gesticulation

the mouth speaking and fingers sketching -- explain by means of illustration or gesticulation

Dictation, Chinese idioms, Pinyin is k ǒ Uji ǎ ngzh ǐ Hu à, which means to use gestures to help express meaning while speaking. From Liu Zihou's epitaph.

The origin of Idioms

Han Yu's epitaph of Liu Zihou in the Tang Dynasty said, "he inherited Zihou's dictation and was a ci writer, and he had a considerable degree of law."

Idiom usage

To describe in detail. He often dictates to his students in class.