到迈阿密要几小时？
对于拥有庞大的音乐库的人们，这个过程可能要几小时甚至几天才能完成。
And that process can take hours, if not days, for people with large collections.
大气风暴出现在几小时内，持续几天，而磁暴形成要几十年，持续几个世纪。
Whereas atmospheric storms arise in a matter of hours and last for days, magnetic tempests develop over decades and persist for centuries.
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