没看懂，这是干啥，花要人造光源？

来源: itistrue 于 2017-09-01 15:29:08 [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.