Her friends often tell her that she eats too many french fri

从句与主句的关系,好比是子公司和总公司的关系.一个公司有经理和工作人员.一个句子有主语和谓语两部分组成.子公司是总公司的一个组成部分.从句是主句中的一个句子成分.按功能分,有名词性从句（包括主语从句、宾语从句、表语从句和同位语从句）、形容词性从句（即定语从句）和副词性从句（即状语从句）,按句子成分分有主、宾、表、同、定、状语从句
例：That the earth goes around the sun is know to us all. 主语从句.
We all know that the earth goes around the sun. 宾语从句.
What we all know is that the earth goes around the sun. 主语从句, 表语从句.
The fact that the earth goes aroung the sun is known to us all. 同位语从句.
This is the best film I have even seen. 定语从句.
Where there is a river, there is a big city. 状语从句.