Pay dirt
01
有价值的发现, 有利可图的发现
a valuable or significant discovery, often resulting in financial gain or success
Dialect
American
American
Idiom
Informal
例子
After months of searching, the archeologist finally hit pay dirt and discovered an ancient artifact.
经过数月的搜寻，考古学家终于挖到宝并发现了一件古代文物。
02
有利可图的矿石, 赚钱的矿脉
ore that yields a substantial profit to the miner
