人家是從操作上加上保險吧，然後該幹嘛幹嘛。保險和hedge等都是人家發明嘛。咱老祖宗要麽置田，要麽銀子埋在老槐樹下，嗬嗬

來源: 大西洋裏來的人於 2024-10-25 16:58:41 [舊帖] [給我悄悄話] 本文已被閱讀：次

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