请帮助讲解以下戈壁地貌？英文也请指教。谢谢！

来源: 阿姗于 2004-10-23 19:07:19 [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