Chinese, English, Spanish, Russian, Arabic and French are the main languages in the world and the working languages of the United Nations.
Chinese is the most populous native language in the world, and English is the most widely used language in the world.
The three elements of language are phonetics, grammar and vocabulary, which is a phonetic ideographic system composed of vocabulary according to certain grammar. According to the relationship between the characteristics and origins of language elements, languages in the world are divided into different language families, and each language family includes several languages. These language families and languages have a certain geographical distribution, and different languages constantly learn from each other in the process of development.