One suggestion is to double up on the chocolate truffles and get 2 for $44.85, a true upsell.

其中一个推荐是指买2盒truffles巧克力只要44.85美元（译者注：单盒29.95美元），这确实是向上销售。

CompUSA separates upsell from cross-sell with “Want to Upgrade?” suggestions and “More Recommendations”

CompUSA以“想要升级吗？” 区分向上销售和交叉销售，以“更多推荐”区分可选产品和交叉销售。

The creation of communities to share experience and interest in brands or products can lead to increased retention or upsell to related products and services.

创建社区来分享品牌或产品的经验和兴趣，可以导致保持相关产品或服务的关注和销售提升。

Have a thorough knowledge and understanding of all food and beverage items in the menu and the ability to recommend food and beverage combinations and upsell alternatives.

对菜单上的所有菜品和饮料有全面的知识和理解，并能推荐菜品和饮料的搭配及促销。

The last two are just using Groupon for a very traditional service business model: low-cost services or "consultations" that they use to upsell you more expensive services.

最后两比团购则只是将Groupon用于了非常传统的商业模式：廉价服务或者“咨询”，用于后续向你推销更多昂贵的服务。