这座矿山出产很多矿石。
zhè zuò kuàngshān chūchǎn hěnduō kuàngshí 。
This mine produces a lot of ores.
矿业对经济发展非常重要。
kuàngyè duì jīngjì fāzhǎn fēicháng zhòngyào 。
The mining industry is very important for economic development.
他在矿里工作了十年。
tāzài kuàng lǐ gōngzuò le shínián 。
He worked in the mine for ten years.