1.One largely untapped source of energy, however, is the methane generated by cows on farms around the world.
然而，一种还未被大量开采的能源，是全球农场上奶牛所产生的沼气。
2.For these reasons, social network analysis will remain an untapped source of insight in most organizations.
基于这些原因，社区网络分析仍然是大部分企业不能够很好地开发的一个信息来源。
3.China has a large untapped source of further growth: its vast state-owned assets, including enterprises, resources and land.
在实现进一步增长方面，中国拥有一个未经开发的巨大来源：其庞大的国有资产，包括企业、资源和土地。
4.This is an untapped source of revenue which will generate more fiscal space.
这是未采用的收入来源，将扩大财政空间。