英语翻译
问题描述：
英语翻译
but no one in the trade comments unfavorably on the huge costs incurred by endless changes of package sizes,materials,shape,art work,and net weights that are used for improving a product's market position.
答
但是在贸易中,没人会从反面去评论那些由于为了改善产品市场地位而无休止的改变包装尺寸、材料、形状、工艺和净重而产生的巨额费用.句子主体是：no one comments on the huge costs.没人对巨额费用发表评论.in the tr...