Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/19752adf1c4955fa0b3692a65bf8375b.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 operating earning rate是什么意思，operating earning rate的翻译，operating earning rate音标、读音、用法和例句_贰靶汉英词典