请帮忙分析一下这句话的结构Yet the desirability of further economic growth
请帮忙分析一下这句话的结构
Yet the desirability of further economic growth for a society that is already wealthy has been questioned on grounds that undoubtedly have a good deal of validity.尤其是后面这句that undoubtedly have a good deal of validity在句子是充当的什么成分?