What do you think will happen if we take the copper-bottom pot out of the tub and use a single penny instead?
如果我们将铜底锅从盆中取出而使用一个硬币代替，您认为会发生什么情况？
Though I would make a suggestion. You should get a sticky mat for the bottom of your tub.
我倒有个建议，可以在浴缸底下放个防滑垫。
We did this using a galvanized (zinc-plated) tub, a stew pot with a copper bottom, and a bottle of lemon juice.
我们使用镀锌的盆、铜底的炖锅和一瓶柠檬汁来实现。
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