A piece of debris has narrowly missed the International Space Station (iss), forcing its six crew members to go to their escape capsules and prepare for an emergency evacuation back to Earth.
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之后，航天员将进入天宫二号空间实验室生活30天，这也是中国航天员在太空生活时间最长的一次。
Then the astronauts will enter the space lab and stay there for 30 days, which will be the longest space stay by Chinese astronauts.
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