啊，老年生活竟然是这样的吗？都说多动脑、做科学等可以防止老年痴呆

来源: FionaRawson 于 2023-08-09 08:57:31 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

前天见了我的导师，快八十了还是尖锐得很

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