1.定语:定语用来限定、修饰名词或代词的,是对名词或代词起修饰、限定作用的词、短语或句子,汉语中常用‘……的’表示。
a clever boy The boiling water Fallen leaves The man who you are looking for
2.定语从句:修饰某一名词或代词的从句。
Do you know the man who came to see Xiao Yang this morning?