Frontosa can only be sexed reliably by venting, and even this method cannot always be trusted.比较可信的方法是通过泄殖孔判断, 甚至于这个方法也不是总是有效的,通过泄殖孔判断性别需要一定的经验.Sonia, we are reliably informed, loves her family very much.我们从可靠的消息来源获知索尼娅非...