4.influence vt./n.影响(力) n.影响，有影响力的人
10.observation n.注意，观察；言论；(常 pl.)观察数据
In a world where average is officially over, there are many things we need to do to support employment, but nothing would be more important than passing some kind of G. I. Bill for the 21st century that ensures that every American has access to post-high school education.
【状语】In a world
【定语】where average is officially over
【定语】we need to do to support employment
【状语】than passing some kind of G. I. Bill for the 21st century
【定语】that ensures that every American has access to post-high school education.
【语法分析】该句以there are many things we need to do...but nothing would be more important than...结构引出应对失业情况当前最重要的举措；定语从句that ensures that...说明此类法案（some kind of G. I. Bill）的作用：确保公民接受高等教育。