哎呀！真不对称性！咋回事呀？大家都查查自己的。在同一边，上面少一颗，下面多一颗；另一边，正好相反。

来源: lawattaction 于 2020-10-15 07:47:19 [旧帖] [给我悄悄话] 本文已被阅读：次

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