Two DE Havilland Comet aircraft-the world's first commercial jet-broke up mysteriously in mid-air in 1954.

在1954年，哈维兰公司的两架彗星客机在空中神秘地解体，彗星客机是当时最先进的商务飞机。

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Then they learned that, the comet will return to earth in two years later, the use of hot air balloon, in the comet colliding with earth to the moment of the victory of earth.

后来他们得知，这颗彗星会在两年后重回地球，利用热气球，在彗星与地球相撞的那一刻胜利前往地球。

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Then they learned that, the comet will return to earth in two years later, the use of hot air balloon, in the comet colliding with earth to the moment of the victory of earth.

后来他们得知，这颗彗星会在两年后重回地球，应用热气球，在彗星与地球相撞的那一刻成功前往地球。

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Then they learned that, the comet will return to earth in two years later, the use of hot air balloon, in the comet colliding with earth to the moment of the victory of earth.

后来他们得知，这颗彗星会在两年后重回地球，应用热气球，在彗星与地球相撞的那一刻成功前往地球。

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