The blast-off of the first US rocket in 50 years capable of carrying humans to the moon was called off on Monday morning after last-minute problems with an engine cooling system.
由于引擎冷卻系統(tǒng)在最后一刻出現(xiàn)問(wèn)題,美國(guó)50年來(lái)首枚能夠載人登月的火箭的發(fā)射于周一上午被叫停。
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