英语翻译

题目

英语翻译
A commissioner is an official elected by an athletic organization or league to exercise administrative or regulatory powers over it
麻烦给我划分句子，并对应给出解释，不好意思，没讲清楚

答案

A commissioner is an official （elected by an athletic organization or league） to exercise administrative or regulatory powers over it
这样应该好一点.括号里的那个短句是一个省略了的定语从句,用来修饰a commissioner,括号后面to后面的就是另外一个短句,用来说明commissioner的用途和目的,比如I have a knife to cut the apple.就是这样了.