可能你的BOSS让你告诉客人 合同现行的价格已经够低了,让你婉言拒绝客户的二次返工要求或者要求返工加价吧.我的翻译是： As the prices of raw material have been marching higher since last May(楼上的朋友写成了April),I am afraid it'll take us more to do a further rework.末了,你还可以加一句pls kindly take our condition into consideration 外贸函电讲究委婉但切中要害,还要避害趋利,所以我帮你省掉了“若因质量有毛病”这句 一家之言 请您参考
