Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/2a7453a774abf3864102d2b8938c9f67.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 abstraction (n.)是什么意思，abstraction (n.)的翻译，abstraction (n.)音标、读音、用法和例句_94生活常识网有道词典