短語詞組短語income satisfaction inequality 收入滿足度差距income level inequality 收入不平等personal income inequality 個人收入不平等urban income inequality 收入不平等income related health inequality 收入相關(guān)健康不平等regional income inequality 地區(qū)收入差距Income Inequality Hypothesis 收入差距假說Education and Income Inequality 教育和收入不平等household income inequality 城鄉(xiāng)居民收入差別 返回 income inequality