问题标题：
语法问题雅思写作
问题描述：
rule-setting has long been a method adopted by teacher and parents to discipline and educate childrn .adopted为什么要加ed，做什么成分，是什么词性
rule-setting has long been a method adopted by teacher and parents to discipline and educate childrn .adopted为什么要加ed，做什么成分，是什么词性
