在生物界，病毒通过传染从一个生物体扩散到另一个生物体。

In the biological world, the virus spreads from one organism to another.

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缓冲区可分为空间物体与邻近对象只呈单一距离关系的静态缓冲区和空间物体对邻近对象的影响度随距离变化而呈不同强度的扩散或衰减的动态缓冲区。

Static buffer is only a simple zone around the entity, but in dynamic buffer, the influence is changed alone with the distance between the entity and the around objects.

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