Most of the merchandise - up to 4,000 items on a busy day - comes from estates, houses being cleared when families move or someone dies.

当生意鼎盛时，每天进出的数量，高达三、四千件。这些货物来源多半是住家搬迁，或有人死亡后，清理出来的物品。

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In order to maintain the cleanliness of public areas and clear corridor, no private items are allowed to stack in the public areas, otherwise, the items will be cleared away.

为了保持公共场所整洁、走廊畅通、私人物品不得堆放在公共场所，否则按无主物品清除。

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Nab tax deductions by donating cleared-out items to nonprofit organizations.

CNN: Decluttering before the New Year

No sooner are these sales finished than all the notebooks and pencils are cleared away and replaced by Halloween costumes, candy and other festive items, and Christmas merchandise fills up the aisles soon afterward.

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And most limit their announced sales to smaller items that lend themselves to bulk inventory that need to be cleared out.

FORBES: Magazine Article