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乳制品行业必须在环境管理方面发挥领导作用。
The dairy industry must lead in environmental stewardship.
The most important political development of the last two centuries has been the rise of the modern state.
我的画像是无声的尖叫。
海洋不仅是一种资源,更是我们必须为子孙后代承担的责任。