求翻译：第一次世界大戦期の社会変動と米騒動を画期に成立し、戦後における政治参加の拡大を背景に拡充されてきたの社会行政・「社会政策」は、主として都市の生活問題と労働問題に対応するものであった。是什么意思？

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The World War II era and the Rice Riots of social change to draw close to the post-war period of political participation in the background of the expansion of Japanese society has been government and "Social policy" of the city, mainly the life issues and labor issues.

Social fluctuation and American disturbance of first next great war period enlargement of the political participation which is formed in end, in postwar period social administrative “social policy” of Japan which is expanded to the background was something which corresponds to the life problem and w

Japan established rice riots and social change during the first world war epoch, background has been enhance the expansion of political participation in the post-war social administration, social policy is opposed to mainly urban life and labor issues was in.

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