皮夹子

lǐ miàn yǒu xìn yòng kǎ de pí jiā zi

里面有信用卡的皮夹子

wallet containing credit cards

wǒ kě néng bǎ pí jiā zi là xia le

我可能把皮夹子落下了。

I might have left my wallet behind.

tā bǎ pí jiā zi dōu dǐ fān guò lai

他把皮夹子兜底翻过来。

He turned his wallet upside down.