英文语法问题(国富论)

问题描述:

英文语法问题(国富论)
the annual labour of every nation is the fund which originally supplies it with all the necessaries and conveniencies of life which it annually consumes, and which consist always either in the immediate produce of that labour, or in what is purchased with that produce from other nations.
请高手帮忙分析一下语法结构.另外,那里面两个指示代词it都是指的什么东西啊?看了好久,看不懂.

The ...labor ...is the fund.The fund supplies with necessaries and conveniences ...and consist either in .or in ...两个it指的是"the nation":The fund supplies the nation with necessaries and convenienc...