air force
US /ˈer fɔːrs/
UK /ˈer fɔːrs/

名词
1.
空军
the branch of a nation's armed services that conducts military operations in the air
示例:
•
My brother joined the Air Force after high school.
我哥哥高中毕业后加入了空军。
•
The country's Air Force conducted a training exercise.
该国的空军进行了一次训练演习。
在 Lingoland 学习这个单词