矿藏: mineral resources...
实验: experiment, test, experimental, to experiment...
挖: to dig, to excavate, to scoop out...
成才: to make sth of oneself, to become a person who is worthy of respect...
分解: to resolve, to decompose, to break down...
一句话: in a word, in short...
用途: use, application...
难堪: hard to take, embarrassed...
历经: to experience, to go through...