关系副词和关系代词的区别

关系副词和关系代词都是用来引导定语从句的，但是它们的用法不同，关系副词在从句中作状语，修饰谓语动词、形容词或其他副词，表示时间、地点、原因、条件、目的等；而关系代词则在从句中作主语、宾语或表语，代替先行词，使句子更加简洁明了。

- The book (which) I borrowed from the library is very interesting.(关系代词which代替先行词book,在从句中作主语)

- This is the place (where) we met last time.(关系副词where代替先行词place,在从句中作状语)