Kieran Cain was playing basketball with his kids Saturday afternoon at an elementary school in greater Denver when he heard what sounded like a sonic boom and looked up.
원문출처 : https://www.cnn.com/2021/02/22/us/boeing-aircraft-engine-fail-monday/index.html
원문출처 : https://www.cnn.com/2021/02/22/us/boeing-aircraft-engine-fail-monday/index.html