gōng / zuò / rén / yuán / gào / sù / wǒ / guì / tái / shàng / de / yàng / pǐn / dōu / shì / fēi / mài / pǐn

工作人员告诉我，柜台上的样品都是非卖品。

The staff member told me that all the samples on the counter were not for sale.