他的桌子上堆了成摞的纸。
你还记得：在一个移动带上有数千个2便士硬币摞成摞，你必须投掷自己的硬币，并希望它会导致那些成摞的硬币被击倒，这样你就能悉数归拢这些硬币了。
You remember: thousands of two pence coins lie on a moving shelf, and you have to drop in coins of your own in the hope it will cause the pennies to tumble down for you to collect.
要保存生的汉堡肉饼，可以用小的塑料咖啡罐的盖子分隔，将它们摞成一摞，装进塑料袋里，封好口。
To prepare raw hamburger patties for freezing, separate them with small plastic coffee-can tops, stack them in a pile, place them in a plastic bag, and seal.
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