How planetary nebulae can form such complex structures, however, is a hot debate among professional astronomers such as Jacoby.

然而，关于行星星云如何形成这么复杂的结构，却在Jacoby等专业天文学家中引发了一场热烈的争论。

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This article discussed the hot topics focusing on Dolby Digital and surround sound technologies, with a probing into some professional issues related to the HDTV audio domain.

本文围绕杜比数字和环绕声技术等热点话题，探讨了有关高清晰度电视音频领域的一些专业问题。

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In the hot hunting job environment, how can the higher professional college students do to fit the need of companies and get the job finally is the most important problem for them.

在供大于求的激烈的大学生求职中，高职大学生如何顺应各种用人单位需要，获得用人单位喜欢，最终就业，是当前高职大学生求职路上急待解决的问题。

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The National Hot Rod Association, which represents professional drag-racing, has also tried to help, encouraging affiliated tracks to open their facilities to street-racers for safe, controlled contests.

ECONOMIST: Another reason to stay home at night

And he said something else here that was intriguing: he said he regretted returning to cycling in 2009, suggesting it had possibly set into motion the chain of events that led him to his professional humiliation, a lifetime ban from competition and the hot light of this hotel suite.

WSJ: Lance Armstrong Begins His End��Jason Gay

In reality, only professional money managers and well-heeled investors get into a hot deal at this price.

FORBES: A decade of new issues