Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/ec1fda00a8f17d7909d94b8ca21162c5.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 background (n.)是什么意思,background (n.)的翻译,background (n.)音标、读音、用法和例句_沉淀汉英词典