在南达科他州埃尔斯沃斯空军基地，美国空军运营的一架B-1枪骑兵轰炸机在训练演习中坠毁。 At Ellsworth Air Force Base in South Dakota, a B-1 Lancer bomber operated by the US Air Force crashed during a training exercise.

美国空军一架 B-1 枪骑兵轰炸机在南达科他州埃尔斯沃斯空军基地执行训练任务时坠毁。 A US Air Force B-1 Lancer bomber crashed during a training mission at Ellsworth Air Force Base in South Dakota. 所有四名机组人员均得以安全弹射。 All four crew members were able to eject safely. 事件原因尚不清楚，官方也没有提供更多细节。 The cause of the incident is unknown, and officials have not provided further details. 空军军官委员会将调查这起事故。 A board of Air Force officers will investigate the accident. 坠机时，气温极低，云层较低，能见度很差。 Visibility was poor with freezing temperatures and low clouds at the time of the crash.