有的丘疹散在或不规则分布，如丘疹性荨麻疹，另一些则群集，如光泽苔藓；
Some papules are discrete and irregularly distributed, as in popular urticaria, whereas others are grouped, as in lichen nitidus.
它们也许只随着某种不规则分布的概率，刹那出现，有幸遇见，然后，抓住或错过。
They might just as some kind of irregular distribution of probability, moment there, had the honor meet, then, to seize or miss.
纹路看似不规则分布，但实则被数个点位精准控制，提示着身体从头肩到膝踝这一系列肢体部位对座面将会发生的压力作用。
The seemingly random distributions of the curves are actually carefully controlled by a few key points, which are corresponding to the pressure from one's head, shoulder, knee, and foot.
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