関連ワード:  difference between upper class and working class    difference between upper working class and lower middle class    difference between working class middle class and upper class    what was the difference between an upper class person and a working class person in 1912 britain    working class vs upper class    working class vs middle class vs upper class    what is the difference between the middle class and the working class    is middle class higher than working class  
結果 : difference between upper class and working class