It slowly and visibly appears on top of the face-down deck.

它缓缓地，明显地出现在了面朝下纸牌的上面。

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A translucent piece of plastic is placed on top of the ordinary face-down deck to isolate the CARDS and preclude the magician from any "tricky business."

把一块半透明的塑料片放在普通的面朝下的扑克牌上面，隔开这些纸牌，以防魔术师做手脚。

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A translucent piece of plastic is placed on top of the ordinary face-down deck to isolate the CARDS and preclude the magician from any "tricky business."

把一块半透明的塑料片放在普通的面朝下的扑克牌上面，隔开这些纸牌，以防魔术师做手脚。

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