principal相关的词根或词缀是: prim

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Europe 's principal problem isn 't the size of its members ' debt and deficits .

欧洲的主要问题并不是成员国的债务和赤字规模。

His principal management tool is a detailed , weekly profit report on every operation .

他的主要管理工具是每一项业务详细的周利润报告。

But under the european plan , the only backstop is the principal in the efsf .

但在欧洲的计划中，唯一的后盾是EFSF的本金。

Commentators on global english ask three principal questions .

全球英语的评论人士问及三个主要问题。

Even the school principal would be evaluated on such statistics .

即使是学校的校长也会由于这些好的数据得到提升。