And yet, this messy process is still not fully understood by astronomers. But one clue has been unearthed by astronomers studying the most nearby gas clouds in the galaxy.

至今天文学家对恒星的形成都不完全了解，但是通过研究最近邻的气体云星系人们发现了一丝线索。

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But he hopes his study, published this week in the online journal PLoS One, offers an important clue.

但是他希望他本周发表在在线杂志《公共科学图书馆。综合》上的研究结果能够提供一项解决问题的重要线索。

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Then a Jeopardy! clue is displayed: "Groucho quipped, 'One morning I shot' this 'in my pajamas.'"

然后，《危险边缘》的提问线索这样说：“格劳乔打趣的说，‘一天早上我把这射在了我睡衣上’。”

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Fingerprints are one important clue in a crime scene.

VOA: special.2010.05.05

One clue lies in looking at how far we've come.

WSJ: The Economics of Leaning In

Perhaps surprisingly, one clue may lie in the popularity gap between the queen and bankers such as Mr Hester.

ECONOMIST: A bitter row about executive pay is about something bigger

During the manhunt, authorities released one clue that they said may help in the search.

CNN: Killer captured after being mistakenly freed in Chicago