Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/b1d807cc3aaa7ab54f80cea4339decf4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 favorable variance是什么意思，favorable variance的翻译，favorable variance音标、读音、用法和例句_94生活常识网有道词典