那是因为翅膀振动速度太高的原因。苍蝇飞起来也嗡嗡嗡的呢

来源: woth 于 2014-08-21 10:01:42 [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.

Change Ad Consent