The authors also found exceptions to the “freebie duation” rule. For example, when the researchers explained that the products were paired so consumers would become familiar with the freebies, they were willing to pay more.
基于1个网页-相关网页
freebie duation
免费赠品duation
以上为机器翻译结果，长、整句建议使用 人工翻译 。
应用推荐
模块上移
模块下移
不移动