Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/87f21d4d54d63a285ab98315c6a67467.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 conference telephone device是什么意思，conference telephone device的翻译，conference telephone device音标、读音、用法和例句_沉淀汉英词典