当关系代词在定语从句中担当介词宾语的角色时,通常会使用“介词+关系代词”来引导定语从句。倘若所指对象为“人”,则采用“介词+whom”的形式;要是所指对象是“物”,就运用“介词+which”。和其他形式存在差异之处在于,which 或 whom 充当介词的宾语,而像 that 等前面是不能添加介词的。
You must signal which way you are going to turn.
你要朝哪个方向转,就得发出信号。
There are two points which I wanted to make.
我想要提及的有两点。
We are still friends, though, which is good.
不过我们依旧是朋友,这还是不错的。