Alcohol (Chinese pinyin: chún；; ; German: alcohol; ; Spanish; English: alcohol; ; French: alcool；; All of them come from Arabic: "al-kuhl" (meaning: distillate) is a large class of organic compounds, which are aliphatic hydrocarbons, alicyclic hydrocarbons or aromatic hydrocarbons whose hydrogen atoms are replaced by hydroxyl groups.

Generally speaking, alcohol refers to the compound formed by the connection of hydroxyl group and aliphatic hydrocarbon group; When hydroxyl group is connected with benzene ring, it is classified as phenol because of its different chemical properties from ordinary alcohol. The hydroxyl group is attached to sp2. Hybrid double bond carbon atoms belong to enols. Most of these compounds cannot exist stably because they are tautomeric with ketones.

Alcohol is a large class of organic compounds, which is a compound in which the hydrogen atom in the side chain of aliphatic hydrocarbon, alicyclic hydrocarbon or aromatic hydrocarbon is replaced by hydroxyl group. Commonly called alcohol, the hydroxyl group is attached to the saturated sp3 hybrid carbon atom. If the hydroxyl group is attached to the benzene ring, it is phenol; If a hydroxyl group is attached to an sp2-hybridized olefinic carbon, it is an enol. Phenol and enol are quite different from ordinary alcohols in nature. In addition, "alcohol" has the thick, simple and simple meaning of wine.

Kangxi dictionary:

[Ancient prose]? Tang Yun, Ji Yun, Yunhui and Zheng Yun are different. Pure voice. Shuowen doesn't pour wine. Everyone who comes to see the Biography of Cao Can before the Han Dynasty wants to have something to say, and everyone who comes to see it wants to drink. Note: If you don't pour alcohol, it's called strong wine. Liu Pengzi's biography in the later Han Dynasty was beneficial to wine making.

It is also devoted to jade articles.

It is also the essence. The book "On Health Preservation" has a unique spirit.

It is very thick. As for the "Han Jing Di Ji", it is quite familiar. Laozi's morality and classics are boring politically and mellow. "Note" is politically generous, while the people are rich and clean, close and distant.

It's complicated "Yi copula" Everything in the world turns into alcohol. "Shu" everything changes, pure and mellow. The original meaning of Zhu Xi is thick and concentrated.

It's also important. Shi Jun Zhuan has nothing to do with the Prime Minister, but the Prime Minister is sincere. Biography of the Former Han Dynasty is nothing more than wine.