瞎联想！物物交换；金银铜，贝壳当中介；纸币当中介；“电子数字”当中介。

来源: Royale2020 于 2020-08-16 08:40:29 [旧帖] [给我悄悄话] 本文已被阅读：次

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瞎联想！ 物物交换；金银铜，贝壳当中介；纸币当中介；“电子数字”当中介。