多年以来，贵方巡回通讯员在海外漂泊时，携带着不是笔记本电脑而是掌上电脑进行邮件收发、新闻上传。

FOR years, your itinerant correspondent toted a palmtop computer, rather than a laptop, to do his E-mail as well as to file stories while on his peregrinations abroad.

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研究者首先提出问题，称其为巡回裁判员问题。

The researchers first had to develop the question, dubbed the Traveling Umpire Problem.

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夜间值班员每小时巡回一次。

The night watchman makes his round every hour.

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