| 释义 | the USAF noun[ + sing/plural verb ]
 uk /ˌjuː.es.eɪˈef/ us /ˌjuː.es.eɪˈef/
 abbreviation for the United States Air Force美国空军(the United States Air Force的缩写)
 SMART Vocabulary: related words and phrases
 The Air Force
 air controller
 air defence
 air force
 air power
 airbase
 dive-bomber
 dogfight
 dogfighting
 fighter
 flyover
 interceptor
 roundel
 slow someone's rollidiom
 stealth bomber
 the RAF
 WRAF
 
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