People who live in the areas of natural gas infrastructure earn from a few to several percent more than those who live in other regions where such an infrastructure does n't exist .
People who live in the areas of natural gas infrastructure earn from a few to several percent more than those who live in other regions where such an infrastructure does n't exist .
People who live in the areas of natural gas infrastructure earn from a few to several percent more than those who live in other regions where such an infrastructure does n't exist .
修正这句话的语法问题: People who live in the areas of natural gas infrastructure earn from a few to several percent more than those who live in other regions where such an infrastructure does n't exist . 输出: