pay dirt
US /ˈpeɪ dɜrt/
UK /ˈpeɪ dɜrt/

1.
富礦, 含金土
soil or gravel containing a valuable mineral, especially gold, in sufficient quantities to be worth mining
:
•
After days of digging, the prospectors finally hit pay dirt.
經過數日的挖掘,勘探者們終於找到了富礦。
•
The old mine was abandoned, but some believed there was still pay dirt deeper down.
舊礦被廢棄了,但有些人相信更深處仍有富礦。
2.
成功之源, 利潤來源
a source of profit or success
:
•
The new marketing strategy proved to be pay dirt for the company.
新的營銷策略被證明是公司的成功之源。
•
He finally found pay dirt with his innovative invention.
他終於憑藉其創新發明找到了成功之道。