Less cleaning, to take care of the dishes and you can just throw it away.

垃圾食品省了装盘和清洗,可直接扔掉

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and you can just take it away and walk around the market. And it's only 5 pounds.

你可以把它打包带走，然后逛逛市集。这只要五英镑。

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it was reversible, so you can give people money and take it away, and you could actually scale the amount of money, so it makes a very handy experimental tool.

这个过程是可逆的，这样你可以给人钱，然后拿走，而且你还可以积攒钱，这就让钱成为了一种非常有用的试验工具。

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