The National Park Service in the United States will mark its one hundredth anniversary in twenty-sixteen. As it nears its second century, the Park Service plans to increase its educational programs for students and teachers.美国国家公园管理处将于2016年迎来第100周年纪念日。在其诞生的第二个世纪临近之际，公园管理处计划为师生增加教育项目。
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