Selling secondhand books at our church bazaar, I got into an argument with a prospective customer.

在教堂的义卖市上卖旧书时, 我与一名准备买东西的顾客发生了一场争论.

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Many companies even maintain their own credit departments that investigate the creditworthiness of each prospective customer.

很多公司甚至设置了自己的赊销信用管理部门调查潜在客户的资信.

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