老枪谷

例句：

1. 1. The old gunpowder factory is still standing in the heart of the city.
   这个古老的火药厂仍然矗立在市中心。
2. 2. The old gunpowder factory is a symbol of the town's history.
   这个古老的火药厂是这个小镇历史的象征。
3. 3. The old gunpowder factory has been preserved as a historical site.
   这个古老的火药厂被保存下来作为历史遗址。