你忘了，笑坛是个讲科学的坛子。嘴吹出来的气体里只有4%的二氧化碳，氧气远多于二氧化碳

来源: 500miles 于 2025-10-09 08:40:16 [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.