释义：通过分析物品的过剩与短缺，就能判断其价值的高低。这句话揭示了市场供求关系对价格的影响。

You'd say he did it to please the guards. Or maybe it's in order to do a good job with us. And I thought he was just to experience the feeling of a normal person again, even just for a short moment.

Sustainability is not an option; it's a responsibility we all share.