他们发射火箭以探测太空。
两枚将探测太空天气情况的欧洲卫星终于进入绕地球运行轨道，4年前第一次发射时因运载火箭爆炸而失败。
Two European satellites that will study the weather in space are finally orbiting the Earth four years after a first launch attempt ended in disaster when a carrier rocket blew up.
我的老师编排了一个关于太空探测的单元，它真正激发了我的兴趣。
My teacher organized a unit on space exploration that really sparked my interest.
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