Well, I have gotten to say this is the longest surviving,

来源: Redfernbus 于 2022-10-19 13:12:52 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 次 (172 bytes)

the most authentic and primitive, the original, the most commonly used method, which is still widely applied on a daily basis by human around the globe. 

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