我还真专门研究过三只鸭的问题，因为每年春天都会三只鸭一起飞来飞去的狂窜，非常有趣的游戏。

来源: Sequoia_CA 于 2025-05-04 08:19:41 [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.