根据统计大萧条时期，美国人口减少500万左右。

来源: XYZ94538 于 2021-02-04 10:57:49 [博客] [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.