Coal mining built modern Britain, and we must respect that heritage even as we transition to cleaner energy sources.
可持续性不仅仅是一个流行词;它是一个商业的必要条件。
I write to remember, to not forget.
判断两个λ表达式是否等价的问题是无法解决的。
实现明天的唯一限制将是我们今天的疑虑。
Real energy solutions come from real energy sources.