Usaf
美国空军, 美国陆军部队
📖 牛津释义
USAF
abbr
缩写 = United States Air Force 美国空军.
🗣️ 情景例句
Safety first.
安全第一。
How long has he been with that company?
他在那家公司多久了？
One day a letter from my father arrived at the school, asking for a teacher for me.
有一天，我父亲的信寄到学校，请求为我聘用一名教师。