经济学的目标是理解如何以最高效的方式分配稀缺资源。
The goal of economics is to understand how to allocate scarce resources in the most efficient way possible.
Every building should be a response to its environment.
试管婴儿的研究是出于帮助不孕夫妇的愿望。
过去总是紧张的,未来则是完美的。