你可曾好奇过，为什么圆形的披萨要装在方形的纸板盒里呢？装在圆形的披萨盒里不是更严丝合缝吗？本文来为你揭晓答案。
If you're like most people, you're too busy eating pizza to stop and consider the logistics of how it arrived on your kitchen counter. Ponder it long enough, though, and you may find it curious that pies usually come in square or other boxes that are a geometric departure from the round crust. So why don't pizzas arrive in round cardboard boxes?
如果你和多数人一样，你一般会只顾着吃披萨而非关心披萨是怎么来到你的餐桌上的。但如果你好好思量一下，你可能会好奇为什么披萨往往都装在和圆形披萨形状不同的方形或其他形状的盒子里。那么为什么披萨不装在圆形纸板盒里呢？
It's mostly because the pizza industry doesn't really care to disrupt the cardboard industry. Cardboard boxes are usually manufactured with edges (i.e. square or rectangular) because they can be made in one piece as well as neatly1 stacked.
这很大程度上是因为披萨产业无意给纸板盒产业找麻烦。纸板盒一般都是有棱角的（比如正方形或长方形），因为这样的盒子可以一次成型，而且也容易堆放整齐。
The advantage of making a round pizza box would mainly be aesthetic2. It's not going to save space over an edged box. In the case of frozen pizzas, stacking pies vertica
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