求翻译：在美国奥巴马政府加紧推动创新战略的重要举措中，“21世纪大挑战”计划是重要一环。该计划由美国白宫科技政策办公室首先提出，对美国的能源、教育、环保、卫生、信息技术、制造业、国家安全及太空科技等领域提出了具体的创新目标。美政府、私营机构和科研院所等各相关领域机构正在加紧落实。美国政府力图通过落实该计划，进一步提高美国的创新能力，为维持全球领导地位提供战略支撑。是什么意思？

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The Obama administration stepped up efforts to promote innovative strategies for important initiatives, the 21st Century Challenges" program is one of the important. The program is being funded by the United States White House National Science and Technology Policy Office first, the United States, e

Steps up the impetus innovation strategy in American Austria Pama Government in the important action, “the 21st century big challenges” the plan is the important link.This plan first proposed by American White House Science and technology Policy Office that, to domains and so on US's energy, educati

In the United States the important initiatives of the Obama administration stepped up efforts to promote innovative strategies, "21st century challenge" project is an important part. The plan by the United States first proposed the White House Office of science and technology policy, to the United S

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