请高手写关於new product development items

new-product development是什么意思 麻烦请高手帮我说一下：listView1.Items.Add()与 listView1.Items[i].SubItem for(Product product:this.items)是什么意思,编译通过了 请高手写文章：moving to a new country 英语翻译rtA method for user-oriented product development hasbeen 请高手翻译A teacher-centered class is no doubt the product of exa a company produces x items of a product at a total cost of ( 英语翻译1.\x05Add n to the number of items of the product in sto 一些英语句子 关於ONLY我这样写 务必请会的再帮解答下: 我写关於汶川大地震的作文 请我起个题目 请写一篇关於周边小朋友“压岁钱怎麼花”的调查报告（200字以上）. Write down some pieces of new technology items around you