sell out, sell off和sell up都可作“售完”或“卖光”解,但三者的意境色彩不同。试比较 Sorry, we've all sold out of shirts in yoursize.对不起,合你尺寸的衬衣已经卖完了。
(一般陈述)The novel sold out quickly.这部小说很快销售一空。(供不应求)Well, let these goods be sold off.好吧,就把这些货物全部卖光。(急于脱手)The boss had to sell up.这个老板只好把存货卖光。(出于不得已,如还债)