The physicists give a simplified example of how this can happen: trying toreach a destination either by using a short but narrow bridge or a longer butwide motorway.
这些物理学家给出了一个发生这种事的简单例证：有两条到达目的地的路，一条路是一座短而窄的桥，而另一条是长而宽阔的高速路。
The physicists give a simplified example of how this can happen: trying to reach a destination either by using a short but narrow bridge or a longer but wide motorway.
物理学家为此给出了一个简化的例子：通过一座短但窄的桥或者一条宽但长的公路均可到达一个目的地。
I don't know how many people would walk across a narrow bridge with no guardrails, where the ground is a mile down, but my guess is relatively few.
我不知道有多少人敢走桥面窄，没有栏杆，离地面1英里高的桥，我猜这样的人应该很少。
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