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These posts contains introductions and study guides for many languages. These guides focus primarily on how to master natural languages rather than on systematic linguistic study of natural languages.

The content of posts is organized into languages. There are introductions to languages about pronunciation, writing system, grammar, vocabulary, logic, rhetoric, etc.

The classification and relationships of languages refer to ISO 639. Use ISO 639-3 codes as language identifiers. But the writing order of content is guided by my personal interests. My main goal was not to study obscure languages, so most of the languages presented were chosen from the ISO 639-1 list.

Also refer to:

The following is my reference when choosing study objects:

Afroasiatic Languages

Standard Arabic

ISO 639-3 Code: arb

Indo-European Languages

Ancient Greek

ISO 639-3 Code: grc

English

ISO 639-3 Code: eng

Learning value:

  • Total users exceed 1 billion.
  • Occupies 2 one-digit prefix partitions in ISBN.
  • Website language accounts for more than 50%.
  • Main language for scientific literature and academic communication.

About the writting system:

English is written using the standard Latin alphabet, in addition to Arabic numerals and several punctuation marks. Foreign words may be spelled using Latin letters that are not part of the standard Latin alphabet. This occurs mainly with words borrowed from other languages that also use the Latin writing system.

In addition, due to the serious disconnect between the spelling and pronunciation of English words, an additional phonetic system is needed to represent the pronunciation of words. You can use the International Phonetic Alphabet (IPA) of the International Phonetic Association to notate phonetic notation. However, many English dictionaries also have their own phonetic notations. Even if some dictionaries use IPA, they will undergo their own adjustments. My personal suggestion is to master one or two commonly used dictionary phonetic notation methods.

About phonetics:

The phonetic system of English is not complicated. There is no complicated intonation system and there are no particularly difficult phonemes to pronounce. However, due to historical reasons, there is a serious disconnect between the spelling and pronunciation of words. This adds a lot of learning costs.

About grammar and vocabulary:

English is an inflectional language that commonly uses SVO word order. But English is relatively less inflected. On the one hand, there are some situations in English that require vocabulary inflection. On the other hand, the word order of English is relatively fixed and cannot be adjusted at will.

Due to historical reasons, there are many irregularly inflection words in English. There are also no systematic rules for the usage of many expressions. So English words and phrases need to be memorized one by one.

French

ISO 639-3 Code: fra

German

ISO 639-3 Code: deu

Italian

ISO 639-3 Code: ita

Latin

ISO 639-3 Code: lat

Modern Greek

ISO 639-3 Code: ell

Portuguese

ISO 639-3 Code: por

Russian

ISO 639-3 Code: rus

Spanish

ISO 639-3 Code: spa

Japonic

Japanese

ISO 639-3 Code: jpn

Koreanic

Korean

ISO 639-3 Code: kor

Sino-Tibetan Languages

Classical Chinese

ISO 639-3 Code: lzh

Learning value:

About the writting system:

About phonetics:

About grammar and vocabulary:

Jin Chinese

ISO 639-3 Code: cjy

Mandarin Chinese

ISO 639-3 Code: cmn

Learning value:

  • Total users exceed 1 billion.
  • Occupies 1 one-digit prefix partitions in ISBN.
  • Website language accounts for more than 1%.
  • Reading of Chinese historical and cultural documents.

About the writting system:

About phonetics:

About grammar and vocabulary:

Yue Chinese

ISO 639-3 Code: yue

Independent Artificial Languages

Toki Pona

ISO 639-3 Code: tok