general subscript grammar

例句：

1. 1.In general, the more complex a language is, the more difficult it is to learn.
   一般来说，语言越复杂，学习起来就越困难。
2. 2. The use of general subscript grammar in programming can greatly improve efficiency.
   在编程中使用一般简写语法可以大大提高效率。
3. 3.Students often struggle with understanding and applying general subscript grammar rules.
   学生常常难以理解和应用一般简写语法规则。