my understanding

来源: help15 于 2010-06-24 10:47:25 [] [旧帖] [给我悄悄话] 本文已被阅读： 次 (149 bytes)
the features of nature would be more valuable than the exploited features of the environment, even if the cost to change it is less than to maintain.
请您先登陆，再发跟帖！

发现Adblock插件

如要继续浏览
请支持本站 请务必在本站关闭/移除任何Adblock

关闭Adblock后 请点击

请参考如何关闭Adblock/Adblock plus

安装Adblock plus用户请点击浏览器图标
选择“Disable on www.wenxuecity.com”

安装Adblock用户请点击图标
选择“don't run on pages on this domain”