Vertical hydroponic farms could be used, which would also provide a natural form of air recycling.

可以使用垂直水培农场，这也将提供一种自然形式的空气回收。

Hydroponic farms are good for two reasons.

水培农场有两个好处。

A hydroponic farm doesn't need soil for its plants to grow.

水培农场不需要土壤来让植物生长。

Thanks to new city zoning laws, that's now possible, along with seven new types of commercial businesses like animal boarding, hydroponic farms and pickleball.

得益于新的城市分区法，以及动物寄养、水培农场和匹克球等七种新型商业业务，现在这一切成为可能。