多谢。有概念了，要meet "Ownership Test (at least owned 5 years)" and

来源: 南山依然 于 2022-07-20 07:29:57 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (81 bytes)

 also  meet " Use Test (at least used 2 years)"。

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