Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/7949ff03332441da0f9752216cdfd4eb.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 covering law explanation model是什么意思，covering law explanation model的翻译，covering law explanation model音标、读音、用法和例句_沉淀汉英词典