people kill wild animals for making bones by their bodies and making clothes by their fur.为什么后

题目

people kill wild animals for making bones by their bodies and making clothes by their fur.为什么后
面两个介词都用by,

答案

语感告诉我,你的句子似乎太redundant了.应该是：People kill wild animals for their fur and / or bones.如果一定要解释的话,by在你的句子里解释为“用,凭借”.实话实说,你的句子在表达上有语法错误,因为by是用不进去的.以下是改善了的句子：
People kill wild animals for GETTING bones RFOM their bodies and making clothes WITH their fur.