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单词 Formal model
释义

Formal model

原声例句
BBC 听力 2014年3月合集

L'Wren Scott, a 49-year-old formal model was found hanged.

现年49岁的前模特L'Wren Scott被人发现自缢身亡。

VOA Daily Standard 2023年3月合集

We've had students from both government schools, private schools, formal model C schools and the constant is that when those students come into our learning environment, almost none of them are able to read, not even blend words.

我们有来自公立学校、私立学校和正规的 C 类学校的学生,当这些学生进入我们的学习环境时,几乎没有一个人能够阅读,甚至连单词都不会拼写。

英语百科

Formal language

Structure of a syntactically well-formed, although nonsensical English sentence (historical example from Chomsky 1957).
This diagram shows the syntactic divisions within a formal system. Strings of symbols may be broadly divided into nonsense and well-formed formulas.  The set of well-formed formulas is divided into theorems and non-theorems.

In mathematics, computer science, and linguistics, a formal language is a set of strings of symbols that may be constrained by rules that are specific to it.

The alphabet of a formal language is the set of symbols, letters, or tokens from which the strings of the language may be formed; frequently it is required to be finite. The strings formed from this alphabet are called words, and the words that belong to a particular formal language are sometimes called well-formed words or well-formed formulas. A formal language is often defined by means of a formal grammar such as a regular grammar or context-free grammar, also called its formation rule.

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更新时间:2025/6/23 1:06:47