The mining firm's shares jumped after engineers confirmed a silver bonanza at the Nevada site.

工程師證實內華達礦區發現銀礦富礦脈後，這家礦業公司的股價大漲。

In the meeting, the CFO said the new gold bonanza could double next year's revenue.

會議中，財務長表示新發現的金礦富礦脈可能讓明年營收翻倍。

Our tour group visited the old mine where a famous gold bonanza was found in 1890.

我們的旅行團參觀了那座在1890年發現著名金礦富礦脈的老礦坑。