Sentence:  Simultaneously we should be underlining the interrelationships of technical progress in various fields , showing how agricultural training can be introduced into education , how health affects labor productivity , how small <WSD>business</WSD> can benefit the rural farm community , and , above all , how progress in each field relates to national progress . 
Meaning of the word marked with <WSD> tags:  a commercial or industrial enterprise and the people who constitute it