不是专利，哈。小小考古：美国土产，源自麦卡锡时代的。

来源: renqiulan 于 2023-06-07 07:21:27 [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.