The law was introduced after a third-grade girl was expelled for a year because her grandmother had sent a birthday cake to school, along with a knife to cut it.

该法规在一个三年级女生被开除后一年得以实施。 这个女孩的外婆送了个生日蛋糕到学校，同时还有一把刀用来切蛋糕。

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Emily took the cake pan and gently worked a knife around the edges, just as Grandma had no doubt taught her.

埃米莉拿起盛薄饼的平底锅，然后用餐刀轻轻地挑起薄饼的边缘部分——无疑就像奶奶当初教她的那样。

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Run a small knife around the edge of each ramekin, carefully invert each onto a plate, and sift a little confectioners' sugar over the top of each cake.

用小刀沿模子边缘将蛋糕取出，倒扣在盘子上，并在每个蛋糕的顶端撒上适量细砂糖。

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Run a thin-bladed knife between the cake and the bottom of the pan to release it, and invert onto a cooling rack.

NPR: Two Centuries of 'Baking in America'

At an event for local councillors, who made short work of the free wine and sandwiches, Sir Menzies was handed a knife to cut the celebratory cake.

BBC: TODAY'S AGENDA

Run a knife around the sides of the cake to release it from the pan, and lift the cake out of the pan by its tube.

NPR: Two Centuries of 'Baking in America'