1. Readers, geographies, histories, grammars flew in all directions. 识字课本,地理书,历史书,语法书飞向四面八方。
2. All the main languages have been studied prescriptively, especially in the 18th century approach to the writing of grammars and dictionaries. 所有主要语言都经过了规定性的研究,特别是在18世纪语法和词典的写作方法中。
3. We call these grammars. 我们把这些称为语法。
4. Grammars can inherit from other grammars. 语法可以继承其他语法。
5. It provides a way of specifying grammars. 它提供了一种定义语法的手段。