Blast off: Space shuttle Discovery and its seven-member crew begin the two-day journey to the International Space Station in 2006.

这是2006年发现号航天飞机载着7名机组成员发射升空，踏上了为期两天的与国际空间站对接的旅程。

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If Discovery isn't flying by then, it will have to get in line behind a Russian Soyuz rocket that's set to blast off March 26 with a fresh space station crew.

如果到时发现号还没有上天的话，发现号将不得不在预定于三月26日俄罗斯发射的联盟号火箭上天后才能升空。联盟号主要是运送新一轮空间站工作人员上天。

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If Discovery isn't flying by then, it will have to get in line behind a Russian Soyuz rocket that's set to blast off March 26 with a fresh space station crew.

如果到时发现号还没有上天的话，发现号将不得不在预定于三月26日俄罗斯发射的联盟号火箭上天后才能升空。联盟号主要是运送新一轮空间站工作人员上天。

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