With its "flying wing" design that makes it almost invisible to radar, the B-2 Spirit bomber is truly a standout among military planes -- and also the world's most expensive, at over $2 billion per aircraft.
원문출처 : https://www.cnn.com/style/article/b-2-spirit-stealth-bomber/index.html
원문출처 : https://www.cnn.com/style/article/b-2-spirit-stealth-bomber/index.html