upsellWiktionary 原文英美构词拆解upup-前缀sellsell词干up-Used to indicate increase. · Used to indicate higher position or direction, literally or figuratively.词源说明From up- + sell.释义动词verb1transitive, intransitiveTo persuade a customer to buy more items, or more expensive items, than they had intended.名词noun1The act of making such a sale.同族词派生词 1upseller相关词 1oversell