Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/fd3701cbcee6eff7d29b10eee5965709.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 blackstone river是什么意思，blackstone river的翻译，blackstone river音标、读音、用法和例句_果味酸柯林斯词典
National heritage corridors of USA are studied from an example as blackstone river valley heritage corridor and actions how American people to do with corridors are summarized. 通过对黑石河峡谷遗产廊道来研究美国国家遗产廊道，总结美国对于这种新型遗产保护的做法。