US astronauts Suni Williams and Butch Wilmore are finally due to return to Earth this week, ending a nine-month mission on the International Space Station that was supposed to last eight days — but this time they will not be using a Boeing Starliner spacecraft as originally planned.
美国宇航员苏尼•威廉姆斯(Suni Williams)和布奇•威尔莫尔(Butch Wilmore)终于将在本周返回地球，结束他们在国际空间站的九个月任务。该任务原本计划持续八天，但这次他们将不会使用原计划的波音(Boeing)星际客机航天器。
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