汉译英下面句子,急用,

问题描述:

汉译英下面句子,急用,
非常遗憾的通知你,发票(invoice)和装箱单(Packing list)也需要修改,上面除了净重外还需标注毛重.
另外:最近的合同没有给我们,付款时需要用到的

I am sorry to inform you that the invoice and packing list needed modifying.Besides the net weight,you should mark the grass weight.
In addition,please forward us the recent contract,which will be used in payment.