非洲有刀耕火种的人工方法，不妨一学。

来源: 长颈鹿唱歌于 2009-06-27 20:58:41 [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.