其实关键在于他因的积累,这个可以丰富一篇argument的内容,增加它的可信性:
我下面举几个常见的例子:
商品的销售情况,市场,利润:a function of supply and demand; quality; price; formidable competitor; national and international economic climate; demographic changes; company's reputation; ad strategy;a waning of interest in XXX among people;supply or distribution problems; market has become satutated; management and market problem; the changes of policy and law; material and labor price; improvement in training of workers....
其实这个是大家积累的过程。。这个大家用一个本子去记,很快就可以收到很多了。。。