3 sentences

1. 地质学家们正在该地区勘探石油。

   dì​zhì​xué​jiā men zhèng​zài gāi dì​qū kān​tàn shí​yóu.

   Geologists are prospecting for oil in the area.

   Source: Dong Chinese Dictionary

2. 工程师们正在勘探一座新的大型铜矿。

   gōng​chéng​shī men zhèng​zài kān​tàn yī zuò xīn de dà​xíng tóng​kuàng.

   Engineers are prospecting for a new large copper mine.

   Source: Dong Chinese Dictionary

3. 勘探报告显示，这个新发现的油田储量非常惊人。

   kān​tàn bào​gào xiǎn​shì, zhè​ge xīn fā​xiàn de yóu​tián chǔ​liàng fēi​cháng jīng​rén.

   Exploration reports show that the reserves of this newly discovered oil field are staggering.

   Source: Dong Chinese Dictionary