vein gold

例句：

1. 1. The vein gold in the stone is very valuable.
   这块石头中的静脉金非常珍贵。
2. 2. The vein gold was discovered by a local miner.
   当地矿工发现了这条金脉。
3. 3. The vein gold has been used for centuries as a currency.
   这条金脉被用作数百年的交易货币。