After living in paris for fifity years,he returned to the small town where he grow up as a child.在此句中为什么连词不用which呢?

问题描述:

After living in paris for fifity years,he returned to the small town where he grow up as a child.
在此句中为什么连词不用which呢?

这里的定语从句是修饰地点,用where,相当于in which