这句话出自牛津高阶字典:
They experienced a period of expansion the like of which the world had rarely seen.
like of which引导的定语从句是限制性定语从句还是非限制性定语从句?
They experienced a period of expansion the like of which the world had rarely seen.
这是一个由 which 所引导的限制性定语从句,之前应该是这样的:
They experienced a period of expansion which the world had rarely seen the like of .