A year later during a window-washing spurt, I found the crumpled yellow shirt hidden in a rag bag in my cleaning closet.

一年后，在决定洗 窗户时，我在一个清洁柜的破袋子里找到这件黄衬衫。

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"By touching the bag and feeling it, the rag-picker knows its value," says a scientist.

“只要摸一摸，拾荒者就知道这种塑料袋值多少钱”，一个科学家这样说。

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"By touching the bag and feeling it, the rag-picker knows its value," says a scientist.

“只要摸一摸，拾荒者就知道这种塑料袋值多少钱”，一个科学家这样说。

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