he helped change the way policing is done is america 帮忙讲下语法,
问题描述：
he helped change the way policing is done is america 帮忙讲下语法,
1
答
他帮助改变了美国维持治安的方式.
the way (that/ in which) pliicing is done in America
定语从句修饰the way
后面的is打错了,改成in