us air force
参考词典中us air force的常规释义：
英英解释
1个名词解释
- the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
[同] air force, u. s. air force, united states air force, us air force, usaf
点击查看……- the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
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