Pure: pure. The Taoist priests who made pills thought that it would be a success if the fire in the furnace was pure green in color. Later, it was used as a metaphor for the achievement of pure and perfect kung fu.

Chinese idiom: Tang Sun Simiao's "Poem in Four Words": "The furnace is on fire, and the flames are open and close; the smoke is shown to the Qianqian, and the flames are not false blue."

Chinese idiom example sentence: By now, it has reached the climate of the Hearth and Furnace, and it is the time for the brothers to show their skills.

Traditional writing style: 炉火純青

Note: ㄌㄨˊ ㄏ, ㄨˇ ㄔ ㄣˊ ㄑㄧㄥ

Synonyms for Hearth and Fire Pure Green: 挥洒自如挥洒: wield the brush; 酒: sprinkle the ink. It describes the ability to draw, write, and compose as one pleases.

Common Usage: Common idiom

Sentiment. Color: 褒义成语

Chinese idiom structure: subject-verb idiom

Era: Modern idiom

English translation: reach high perfection

Russian translation: верх совершенства

Japanese translation: (学学-技术などが)精達(せいたつ)し ている，完(かん)べきである

Other translations: <德>kǒchste perfektion <grǒβte kunstfertigkeit>

Pronunciation Note: Pure is not to be pronounced as "cún".

Note on writing: Qing, cannot be written as "qing".