Question

这个英文句子结构怎么分析，谢谢！

this city have great buildings,some of which have machines in them for doing many sorts of work by steam or electric power

Answer 1

在这个城市有很多的建筑，有些建筑里有很多机器通过电力等能源做很多的工作。
主句:this city have great buildings
buildings的定语:some of which have machines in them for doing many sorts of work
work的定语: by steam or electric power

Answer 2

定语从句，整个后面这句修饰buildings，for doing many sorts of work by steam or electric power表目的

Answer 3

《从头跨》休说大话，莫要自夸，山外有人家。天也忒大，地也忒大，挺要紧自家脚步从头跨，从头跨……