Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/505f993f1eb6fc42040f3aab721ffae4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 mach band是什么意思，mach band的翻译，mach band音标、读音、用法和例句_绍翊字体网有道词典