Party B shall be well versed in product knowledge. Party A shall not be jointly liable for any sales dispute between customers and Party B arising out of this cause.是什么意思_Party B shall be well versed in product knowledge. Party A shall not be jointly liable for any sales dispute between customers and Party B arising out of this cause.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句