Energy and sustainability experts say the answer to our future energy needs will likely come from a lot solutions ons both traditional and alternative.
出自-2011年12月阅读原文
英语六级真题
When choosing what products to buy and which brands to buy from, more and more consumers are looking into sustainability.
2019年6月六级真题（第二套）阅读 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
(自然资源)可持续的，不破坏环境的
You use sustainable to describe the use of natural resources when this use is kept at a steady level that is not likely to damage the environment.