OG复习中，第8篇求助！！！！！！！！！！

mathsgirl

    

 The absence of any
comparable

    

increase in unionization among private-sector clerical

    

workers, however, identifies the primary catalyst-the

    

structural change in the multioccupational public-sector

    unions themselves.
此句话说的是私人clerical workers没有增加，但是后一句传达什么意思呢，跟前一句有何关系？谢谢大家

love凤巢

这篇文章我看的很晕，也很不明白！