哪个图说是4秒，而文字说的是数到4，数数呢，可快可慢。所以不一定4秒。

来源: 湖西于 2025-09-06 12:30:19 [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.