Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/9e1d13f161900067504f35867650de9a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 propagation-circle是什么意思，propagation-circle的翻译，propagation-circle音标、读音、用法和例句_沉淀汉英词典