Warning: file_put_contents(/www/wwwroot/ppbbu/n94.cn/cache/595ba953112f1b7082364b404c606efa.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/n94.cn/index.php on line 55 omitted explanatory variable是什么意思，omitted explanatory variable的翻译，omitted explanatory variable音标、读音、用法和例句_94生活常识网有道词典