Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/1a7feeb949763e0ed783f4a544dceea6.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 retention (n.)是什么意思,retention (n.)的翻译,retention (n.)音标、读音、用法和例句_沉淀汉英词典