jū mín kě yǐ yòng zì jǐ de wù pǐn huàn zǒu bié rén dài lái de dōng xi, yě kě yǐ shén me dōu bú huàn, zhí jiē bǎ wù pǐn juān gěi shè qū de èr shǒu diàn

居民可以用自己的物品换走别人带来的东西，也可以什么都不换，直接把物品捐给社区的二手店。

Residents could trade their own items for things others had brought, or swap nothing at all and simply donate their items to the community's second-hand shop.