Vertical farms would need to be efficient, cheap to construct and safe to operate.
垂直农场需要高效、廉价的建设和安全的运营。
Its standard version, along with the software used to construct it, is open sourced.
它的标准版本，以及用于构造它的软件都是开放源码的。
They also use trees and tree branches to construct their homes in streams and lakes.
他们还用树木和树枝在溪流和湖泊中建造家园。
As trees became scarce and they could no longer construct wooden canoes for fishing, they ate birds.
由于树木变得稀少，他们不能再建造木制的'独木舟来捕鱼，只好捕食鸟类。
Must the massive effort to be made in words to construct the city in a speech in order to understand justice in the soul?
为了理解灵魂中的正义，必须在言语中付出巨大的努力来建设这座城市吗?