But without them, there can't be a significant green hydrogen economy.

但没有它们， 就不会有重要的绿色氢经济。

If the hydrogen economy takes off, as many oil giants hope, that will offer another thing not just to produce, but also to buy and sell.

如果氢经济如许多石油巨头所希望的那样起飞，这将提供另一种东西，不仅可以生产，还可以买卖。

But it's something that - you know, the Department of Energy is currently actively trying to create a big hydrogen economy because they think it could be a helpful clean energy source in the future.

但能源部目前正在积极尝试创建大型氢经济，因为他们认为这可能是未来有用的清洁能源。