光是建筑中最重要的材料。

The capitalist achievement does not typically consist in providing more silk stockings for queens but in bringing them within the reach of factory girls in return for steadily decreasing amounts of effort.

Sustainability is not about doing less harm - it's about doing more good.

粮食安全是一个需要地方行动的全球性问题。

我们总是在寻找分析数据的新方法。