A new survey of the Kuiper belt - the distant area of the solar system beyond the orbit of Neptune - has turned up three new icy worlds that may be dwarf planets like Pluto.

一项对柯伊伯带-太阳系学海王星轨道之外的远距区域的调查，找到了三个新的冰封世界，可能像冥王星那样的矮星。

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He performed severe penance for many years to gain enough power to become the king of the three worlds.

他苦行多年，获得了足够的功力而成为了三界的国王。

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My working life has carried me through three distinct worlds relating to women in the workplace.

如果提到工作与女人之间的关系，我的职业生涯先后让我经历了三个截然不同的世界。

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The grand prix will be Bolt's last event before the Worlds three weeks later.

BBC: Bolt to race at London Grand Prix

SONAR, a platform that we developed, combines three worlds: the physical, virtual and social.

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Not many individuals have credibility in or understanding of those three worlds at the same time.

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