jīng / guò / duō / nián / de / kāi / cǎi / zhè / piàn / kuàng / qū / de / zī / yuán / yǐ / jīng / sàng / shī / dài / jìn

经过多年的开采，这片矿区的资源已经丧失殆尽。

After years of mining, the resources in this mining area have been completely depleted.