value sth at +price 这里at +price 是什么成分,没分了.有人知道嘛

value sth at +price 这里at +price 是什么成分,没分了.有人知道嘛 price book value buy sth at a lowest price,buy sth with a lowest price这两个分别用在什么情况下 sell sth for some money = sell sth at (the price of)造个句,写上中文意思. worth value price 的区别 cost,price,value,money的区别 worth price cost value 的区别 请问Nous:cost,price,value的区别 再请问Verbs:cost,price,value的区别 at a price at a price同义词 at a good price At about RMB 4,500 this iPhone 4 is good for money A. value B. price C. offer D. currency这题答案选哪个,为什么 A CD costs 7 yuan plus value added tax at 20% of the cost price.How much has to be paid for the CD do sth --- at a low price / at a low cost / on a low budget 这三个有什么区别吗.求3个例句谢谢 造句：1、on sale 2、have a look at 3、the price of 4、show sb sth 5、show sth to sb 6、wish sb sth火速呀各举2个， 英语帮忙用动词造句cost,price,value value price cost usefulness use 的区别是什么? value和price有什么区别经济学中的区别