求大神帮翻译一下下面这段话Unless otherwise agreed upon between Buyer and Seller in Writing, the Buyer shall pay the Price reduced with 2% cash discount within twenty (20) days after the later of (i) receipt by the Buyer of a proper invoice, (ii) time of delivery of the Product (TOD) or (iii) within thirty (30) days without the 2% cash discount
问题描述：
求大神帮翻译一下下面这段话
Unless otherwise agreed upon between Buyer and Seller in Writing, the Buyer shall pay the Price reduced with 2% cash discount within twenty (20) days after the later of (i) receipt by the Buyer of a proper invoice, (ii) time of delivery of the Product (TOD) or (iii) within thirty (30) days without the 2% cash discount
答
除非经买卖双方书面确认，否则买方应于（1）买方收到正规发票；（2）收到货物后20天内支付98%的款项（2%现金折扣），或（3）30天内支付全款（无2%折扣）。
答
除非买卖双方另有书面协定，否则买方在收到发票后的20天内需支付2%的现金折扣费用，在卖方发货后的30天内支付余下费用。
答
除非经买卖双方书面确认,否则买方应于（1）买方收到正规发票；（2）收到货物后20天内支付98%的款项（2%现金折扣）,或（3）30天内支付全款（无2%折扣）.