horseshoe crabs kept in the dark for a year were found to do sth.中kept...year是什么成分?
问题描述：
horseshoe crabs kept in the dark for a year were found to do sth.中kept...year是什么成分?
非常感谢.
答
kept in the dark for a year 过去分词短语作定语,修饰前面的名词.相当于定语从句
which were kept in the dark for a year