- 由詞、短語充當的定語限定範圍太大，描述得太模糊。於是乎，要想描述得更準確，用上定語從句：用一個句子修飾限定名詞或代詞，本質也是形容詞。
I like a girl who has long hair.
I like a girl who likes eating and watching movies.
I like a girl whom I can travel around the world with.
Be who you are, and never ever apologize for that!
堅持做自己，並永遠不要爲此而後悔！