Defining clause: includes necessary information , doesn't require commas, that can be used instead of who/whichh, who/which can be replaced with that , Non-defining clause: includes extra information, requires commas, that can't be used insted of who/which, who/which can't be replaced with that,

Relative clauses

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?