it is not always true that modern technology is more complex

it is not always true that modern technology is more complex to use than it was to perfrom
household chores.
it was to perfromhousehold chores.的语法结构

1） Household chores.houshold是指一家人,家庭的意思,chores,是指杂事,零星的琐事,这两词连用在一起,形成联合名词,意思是日常家务活的意思,相当于house work.Chore是个可数名词,此处+s为复数.
2) It was to 是一种典型的不定式表语的结构.在此句中perfrom 是动词,直接可以换成do,household chores 是动词的宾语.(通常这种结构不单独成句,而是在某个复杂的句子中成为一个组成部分,在本句中,是作为两种事件复杂程度的对比,than后面的就直接理解为 perfrom household chores.
有问题,还可以再问.
再问： 此句可以写成it is not always true that modern technology is more complex to use than to perfrom household chores 或者 it is not always true that modern technology is more complex to use than doing household chores it is not always true that modern technology is more complex to use than household chores performed 我主要是不懂比较的结构
再答： 这儿的比较是以多音节形容词complex前面加more的比较级结构。be+ more+ adj(多音节）+than, 只不过在这儿的形容词是个短语adj + to do。在这儿的意思是，这此高科技技术比起做家务活复杂得多，是说做家务活比较简单。【搞个计算机图形学的算法程序，比刷锅这类家务复杂的多】 如果还不明白，请直接百度Hi我！
再问： 我的意思没表述清楚，我主要想说的是 modern technology is not more complex to use than performing household chores. 这个句子为什么要加it was
再答： 就这一单句it is not always true that modern technology is more complex to use than it was to perfrom而言，有这么一个汉语意思：有一种现象并不是一直正确，这种现象就是：现代科技（产品）的使用复杂程度比起过去科技（产品）执行程度还要复杂。字里行间应当是说：现代科技产品的使用比较简单，而现代科技（产品）自身的执行过程比较复杂，例如，手机的使用复杂程度要比手机自身执行指令的复杂程度还要简单。当然，it was 结合前后文，不一定就代指modern technology. 请你把实际的场景给百度Hi给我（百度ID“特爱提问”），我一定细心给你解答。不要再追问了，再追问就直接扣分啦。