gù / kè / huí / jiā / hòu / fā / xiàn / zì / jǐ / mǎi / de / xīn / shǒu / jī / yǐ / jīng / bèi / diào / bāo / le顾客回家后发现,自己买的新手机已经被调包了。After getting home, the customer discovered that the new phone he had bought had been swapped.