syntactic rule

例句：

1. 1. The teacher explained the syntactic rule of the sentence to the students.
   老师向学生们解释了句子的句法规则。
2. 2.This grammar rule is crucial for understanding English syntax.
   这个语法规则对于理解英语的句法至关重要。
3. 3. The student's understanding of the syntactic rule was limited by his lack of practice.
   学生对句法规则的理解受限于他缺乏练习。