缩写
中文翻译：美国空军同义词
同义词：
['U.S. Air Force', 'U.S. Air Forces']
例句：
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1. The USAF is responsible for providing security and support to the country's military forces.
美国空军负责为该国军队提供安全和支援。
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2. The USAF has been working tirelessly to improve the quality of life for its citizens.
美国空军一直在努力提高公民的生活质量。
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3. The USAF is a proud symbol of American strength and ingenuity.
美国空军是强大与创新的象征。