如何写出长句

我觉得一篇文章里有三大法宝会让你觉得写文章牛逼的不要不要的 哈哈勿喷

1确定整体主干

定语从句加现在分词

一般是主句怎么怎么了，定语从句修饰其中一个词，现在分词用来表述你对这事儿的主要看法

Eg：They can indicate happiness, which are abstraction, depending on the circumstances.

         Keeping health is important to human beings, who are accustomed to fast food, thus leading them develop a good eating habit.

2 加副词形容词连词介词

They can indicate happiness  or sadness, which are extremely abstraction for modern people，especially for youth , depending on the  suitable and reasonable circumstances.

       presently, with the sound advancement of economy ,Keeping health is an extremely important issue to human beings, who are accustomed to fast food, thus leading them develop a good eating habit.