网站所有者无法在两个子网站之间移动或复制页面？

I have users in the Site Owners group of a root site, trying to copy (or move) pages between Pages Libraries in two subwebs. The permissions of the subwebs are inherited from the parent, with no changes, so the Site Owners of the root are the Site Owners of the subwebs as well.I have users in the Site Owners group of a root