One explanation is that ageing millennials offer a growing market.

一种解释是，老龄化的千禧一代提供了一个不断增长的市场。

But cities offer markets of such scale that they make investing in renewables more financially attractive.

但城市提供的市场规模如此之大，使得对可再生能源的投资在经济上更具吸引力。

Few other industries offer a potential market large enough to move the needle for the trillion-dollar technology titans.

很少有其他行业能提供足够大的潜在市场来推动价值数万亿美元的技术巨头的发展。