translation.en: But the way coal is mined right now is different from the deep mines that her father and her father's father would go down into and that employed essentially thousands and thousands of people.
translation.zh: 然而，现在的煤炭开采 对比过去她的父亲 以及祖父当年在深井里 几千人同时作业的开采方式，大不相同。