英语翻译

题目

英语翻译
Finding of a survey of Systems magazine subscribers:Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five.
Finding of a survey of advertisers in Systems magazine:Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under age thirty-five.
placed在这里是什么意思?

答案

找到一杂志订户的系统调查：百分之30的所有商品在响应用户的广告放置在该杂志去年的订单是在30岁以下的用户名.
寻找一种在系统杂志广告调查：为响应系统的广告放置在去年的大部分商品订单辜负人民在年龄35.
纯手打.分给我