长持盈利的前提是二十年。任何二十年跨度，都会得出相似的结论。

来源: 自有天地于 2022-04-15 19:50:46 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.