He said the mission wouldn't land but rather fly within 100miles of Mars and then use its gravitational pull to return to earth. Mr.
他说这项任务不会在火星着陆，而是在距离火星100英里处飞行，然后使用其重力返回地球。
He said the mission wouldn't land but rather fly within 100miles of Mars and then use its gravitational pull to return to earth. Mr.
他说这项任务不会在火星着陆，而是在距离火星100英里处飞行，然后使用其重力返回地球。
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