请教英语高手来分析一下这个长句的语法!

题目

请教英语高手来分析一下这个长句的语法!
Technology and the division of labor have done two things：by eliminating in many fields the need for special strength or skill,they have made a very large number of paid occupations which formerly were enjoyable work into boring labor,and by increasing productivity they have reduced the number of necessary laboring hours.
我分数比较少,不好意思.希望能够有高手帮忙分析下语法结构,什么主语啦谓语啦宾语啦从句类型啦越详细越好~急用,

答案

Technology and the division of labor have done two things：主句,主谓宾结构,较简单,Technology and the division of labor 作主语,have done 作谓语,two things 作宾语.by eliminating .and by increasing ...是...