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   shāng duì shāng ( b2b) businesstobusiness(b2b)
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   zhǐ zài liǎng jiā gōng zhī jiān jìn xíng de jiāo ér fēi jiā gōng bié xiāo fèi zhě jiān de jiāo
yīngwénjièshì
  1. :  Business to Business (B2B)