Student or Learner
Usually "As A as B like "as pretty as she"" denotes "A as the extent or amount of B", but this underlined means "Though their elaborately decorated temples were impressive". Is it because of the verb "were"? How can you tell the difference?
st102)Looking back, scientists have unconvered a mountain of evidence that Mayan leaders were aware for many centuries of their uncertain dependence of rainfall...As impressive as their elaborately decorated temples were, their efficient systems for collecting and warehousing water were masterpieces in design and engineering.
What do you mean by C word, please?