分析一句话的结构Youmightsaythatthisisaproblemoftheirownmaking,onethattheycouldavoidsimplybychangingtheirhabitsandhuntingbyday.我知道one指代making，那这个是一个什么样的用法呢？one是making的同位

Question

分析一句话的结构
You might say that this is a problem of their own making, one that they could avoid simply by changing their habits and hunting by day.
我知道one指代making，那这个是一个什么样的用法呢？one是making的同位语吗？还是其他什么语法结构？
另外，这句话中间的逗号和one能不能去掉：You might say that this is a problem of their own making that they could avoid simply by changing their habits and hunting by day. 这句话就是一个一般的定语从句吧，that直接指代problem 为什么还要用one呢？

Answer 1

one 指代的是a problem of their own making; 而不是单独指making
而a problem of their own making这个短语中，中心词是problem,而不是making
所以实际上，one 指代的是problem
作为problem 的同位语，后面that引导的是定语从句，先行词是one
把one去掉之后，要把that改为which即可。