按时间顺序排列的人；(尤指)家族的世代，家系。
Series of people following one another in time, esp generations of the same family.
“这可能意味甚么？我在之前已用家族系统排列的例子阐明。还有：”没有人进入同一条河流两次。
What this could mean? I have illustrated before with the example of family constellations. Or the sentence: "Nobody enters the same river twice."
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