Update zh_CN, thanks to walle

language/zh_CN/admin.lang.php

@@ -1289,8 +1289,8 @@ $lang['Page Visited'] = '已访问页面';
 $lang['Page Visited in %s'] = '%s 页面已经被访问';
 $lang['Picture to associate formats with'] = '图片关联格式';
 $lang['Piwigo core'] = 'Piwigo核心';
-$lang['Place first'] = '第一次放入';
-$lang['Place last'] = '最后一次放入';
+$lang['Place first'] = '放在首位';
+$lang['Place last'] = '放在最后';
 $lang['Please upgrade your PHP version before any update.'] = '在升级前请更新PHP的版本';
 $lang['Portraits'] = '图';
 $lang['Posted %s'] = '已发送 %s';