英语翻译Raw materials costing ￡4 per unit are all purchased on c

英语翻译
Raw materials costing ￡4 per unit are all purchased on credit in the month of production.One quarter of the cost is paid upon purchase with the balance being paid 2 months later.

原材料单位成本4英镑,在生产当月以赊购方式购买.已支付其中的1/4,余款在两个月后支付.