gōng / sī / yǔn / xǔ / lǎo / kè / hù / shē / xiāo / yuè / dǐ / zài / tǒng / yī / jié / suàn公司允许老客户赊销,月底再统一结算。The company allows established customers to buy on credit and settle their accounts at the end of the month.