这句话有什么句子成分？怎么理解it was a group of well-educated middle-class families with married p

Question

it was a group of well-educated middle-class families with married parents both living in the home

Answer 1

a group of。。。一群，一个。。。的群体。

a group of well-educated middle-class families 一个受过良好教育的中产阶级家庭群体

with married parents both living in the home： with+宾语+现在分词 作伴随状语修饰families，parents 与living是主动关系，所以是现在分词形式。

这里both做副词的时候，放在Be动词，助动词，情态动词之后，行为动词之前，表示双方都。。。
比如说 We both like English./We can both sing.

全句可翻译为：
这是一个受过良好教育的已婚父母都待在家里的中产阶级家庭。