2 sentences

1. 科学家使用雷达探测地下的金属矿藏。

   kē​xué​jiā shǐ​yòng léi​dá tàn​cè dì xià de jīn​shǔ kuàng​cáng.

   Scientists use radar to detect underground metal deposits.

   Source: Dong Chinese Dictionary

2. 这些宝贵的矿藏在地下沉睡了数千年。

   zhè​xiē bǎo​guì de kuàng​cáng zài dì​xià chén​shuì le shù​qiān nián.

   These precious mineral deposits have lain dormant underground for thousands of years.

   Source: Dong Chinese Dictionary