他们发展成集体而且建立了若干文化中心，后者在墨西哥裔社会政治运动中作为公共关系力量发挥作用。
They developed collectives and established cultural centers that functioned as the public-relations arm of the Chicano sociopolitical movement.
这一预测向人类呈现出了广泛的社会、经济、环境和政治问题，这些问题需要在当下解决，以确保人类拥有可持续发展的未来。
Such a projection presents mankind with wide-ranging social, economic, environmental and political issues that need to be addressed today to ensure a sustainable future for all.
这种观点认为，回归自给自足将促进农业发展、巩固政治主权、甚至提升国民健康。
A move back to self-sufficiency, the argument goes, would boost the farming industry, political sovereignty and even the nation's health.
这种观点认为，回归自给自足将促进农业发展、巩固政治主权、甚至提升国民健康。
A move back to self-sufficiency, the argument goes, would boost the farming industry, political sovereignty and even the nation's health.
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