Currency is for exchange, which is for trade. No trade,

来源: renqiulan 于 2023-10-11 17:17:43 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

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• no modern civilization. History is progress toward -renqiulan- ♂ 给 renqiulan 发送悄悄话 renqiulan 的博客首页 (0 bytes) () 10/11/2023 postreply 17:18:48

• modern civilization, hopefully. -renqiulan- ♂ 给 renqiulan 发送悄悄话 renqiulan 的博客首页 (0 bytes) () 10/11/2023 postreply 17:19:18

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