the USAF
noun[+ sing/plural verb]
uk/ˌjuː.es.eɪˈef/us/ˌjuː.es.eɪˈef/abbreviationfortheUnitedStatesAir Force
美国空军（the United States Air Force的缩写）The Air Force
- air force
- air power
- airbase
- dive-bomber
- dogfight
- fighter
- flyover
- interceptor
- roundel
- slow roll
- stealth bomber
- the RAF
- WRAF