定语从句例句：
1、This is an old computer which works much slower.
2、They stayed with me for three weeks during which time they drunk all the wine I had.
3、The picture we are looking at was drawn by a fifteen-year-old student.
定语从句（也称关系从句、形容词性从句），是指一类由关系词引导的从句，因为这类从句的句法功能多是做定语，所以曾被称为定语从句，这类从句除了可以做定语之外，还可以充当状语等其他成分，所以现代语言学多使用“关系从句”这一术语。在英语中，定语从句主要通过关系代名词法构成。
