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美国太空总署去年发射的“毅力号”火星探测器，上个月抵达火星后，如今计划下个月让“创新号”直升机尝试在火星飞行。 这架直升机将在密度只有地球大气层1%的火星 … source

Provided to YouTube by Universal Music Group Girl (Remastered 2009) · The Beatles The Beatles 1962 – 1966 ℗ 2009 Calderstone Productions Limited (a division of Universal Music Group) Released on: 1973-04-02 Associated Performer, Vocals, Acoustic Guitar: John Lennon Associated Performer, Background Vocalist, Bass Guitar: Paul McCartney Associated Performer, Background Vocalist, Acoustic Guitar, Bouzouki: George […]

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