He hit the jackpot on the slot machine.他在老虎机上赢了头奖。

He really hit the jackpot with his new restaurant. [=he became very successful with his new restaurant]他开的新餐馆的确十分成功。

They hit the jackpot when they hired her. [=she is a very valuable employee]他们雇到了她，真是运气不错。