电池也是一个手电筒，它可以提供十个小时的照明。
The battery is also a flashlight, and it can provide ten hours of light.
如果你的铅笔盒坏了、手电筒的电池没电了、或者你吃剩下了一些食物，你将如何处理这些东西？
If your pencil box is broken, the batteries in your flashlights run out, or you have some leftover food, how will you deal with these things?
上述的规则表明了在玩具汽车和手电筒的购买案例中，有 83% 的顾客还同时购入了电池。
The above rule states that in 83% of the cases where toy cars and flash lights are bought, batteries are also bought.
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