They have no structural purpose but may be considered lucky,

来源: 朱头山 于 2023-07-16 19:53:35 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (203 bytes)
回答: 那个叫 Barnstar 由 SaltandPepper 于 2023-07-16 18:23:57

They are especially common in Pennsylvania and frequently seen in German-American farming communities.

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