Pay dirt
01
貴重な発見, 利益をもたらす発見
a valuable or significant discovery, often resulting in financial gain or success
Dialect
American
American
Idiom
Informal
例
The company has hit pay dirt with its new product line, which is selling like hotcakes
会社はその新製品ラインで 大当たり を引き、飛ぶように売れています。
02
利益をもたらす鉱石, 稼ぎのある鉱脈
ore that yields a substantial profit to the miner
