已知树突与轴突的微管排列是不一致的；在轴突，微管只以其正端(plus end)朝向轴突末端，排列成均一一致的微管束；在树突，则不仅有正端向远端的微管束，也存在负端(minus end)向远端的微管束，后者所占比...
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按照惯例，电路中的电流被认为是从正端流向负端，上电子足以反方向流动的。
By convention, current in a circuit is considered to flow from a more positive point to a more negative point, even though the actual electron flow is in the opposite direction.
假如你坐在一个虫洞附近的桌子上，凝视虫洞的一端，你能看见你自己正通过一个管道窥视自己的花园。
If you were to gaze down one end of such a wormhole, sitting on a nearby table, you could find yourself gazing through a tube at your garden.
在天平的另一端，小型啤酒厂正充满生机。
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