The number one reason is user error, although crashes, fires, floods, theft and viruses all play a part as well.

尽管碰撞、火灾、洪水、盗窃和病毒等都可以导致这一问题，但最主要的原因还是用户(操作)错误。

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If you're bidding into the number one spot because you find it drives the most qualified and engaged visitors, you're doing it for the right reason.

如果你竞价搜索结果页面第一的位置是因为你发现它能够带来找到最有质量、最具互动性的访客，那么你这么做是有道理的。

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However, the researchers say one reason could be that there were far fewer women in the study than men, and only a small number of women changed their marital status during the follow-up period.

不过，研究人员称，可能是因为参与研究的女性人数远远少于男性，而且在跟踪调查中仅有一小部分女性婚姻状况有所变化。

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Now the number one reason, and we have to acknowledge it up front, is usually economically there's no alternative or people believe there's no alternative.

首要原因，我们必须承认，通常是因为，经济上没有其他选择,或者人们认为别无选择。

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That last reason could easily be number one and the only reason.

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From surveys and interviews, we have come to know that the number one reason for student success, in a classroom or online, is a caring instructor.

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First of all sales teaches people skills , and as these same pundits ceaselessly remind us, the number one reason why people are not promoted or fail in management is because they lack people skills.

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