假如27个单词能以26个不同的英文字母中的一个开头（类同于将27个”鸽子“”放入26个鸽子洞中），根据鸽子洞原理，必有2个单词以同一字母为首。

There are 27 words or “pigeons” that can start with one of the 26 different English letters or “pigeonholes. ” By the pigeonhole principle, two of the words must start with the same letter.

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根据我的估计，这方面的文献有40%为英文，40%为德文，20%为法文。

My estimate is that of this literature, about 40% is in English, 40% in German and 20% in French, although this will vary widely for certain areas of the subject.

youdao

根据元资料(metadata)使用Classification Module(英文)即时制定分类决策。

Makes classification decisions on-the-fly based on metadata using classification module.

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