11，还有第四种可能：减少雄性数目，以达生态平衡

来源: 七彩奶油于 2010-10-18 16:05:28 [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.