Doodling
Graffiti, Chinese idiom, Pinyin is Hu à y à NT ú y à, which means to describe poor calligraphy or writing. It comes from Song Lian of Ming Dynasty.
Explanation is often used as modest words.
It comes from Song Lian of Ming Dynasty: "Gu Yu is not sensitive. He practices useless learning. He just uses empty words to meet the needs of the times. He paints vermin and graffiti. It's too late to give."
Chinese PinYin : huà yǐn tú yā
Doodling
refuse to mend one 's ways after repeated education. lǚ jiàn bù gǎi