尽管终端用户可以指定从数据源更新数据的频率，但他们并不能对已经存在的KML文件进行修改。

Although end users can specify how often to refresh data from the source, they can not modify the existing KML file.

youdao

尽管终端用户可以指定从数据源更新数据的频率，但他们并不能对已经存在的KML文件进行修改。

Although end users can specify how often to refresh data from the source, they can not modify the existing KML file.

youdao