My works maintains: the first is to change the extended BNF of TTCN-3 into the normal BNF;

我的工作主要有：一是对TTCN-3的扩展语法规则范式进行改写；

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The grammars for complex languages are commonly described using BNF (Backus-Naur Form) notation or its close relative, EBNF (Extended BNF).

复杂语言的语法通常都是使用 BNF（巴科斯-诺尔范式，Backus-Naur Form）表示法或者其“近亲”― EBNF（扩展的 BNF）描述的。

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Syntax Notes: in this and the following chapters, extended BNF notation will be used to describe syntax, not lexical analysis. When (one alternative of) a syntax rule has the form.

句法注意：在本章和之后的章节中，描述句法时使用与词法分析时不同的扩展BNF记法。当某个句法规则(可能是可选的)具有如下形式。

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