menu. The command can only be activated when at least one link is contained in the current document. When you insert an object such as a picture, for example, you can either insert a copy of it directly into the document or insert it as a link.
菜单中。只有在当前文档中至少含有一个链接时，此命令才能被激活。例如，当您插入一个图片时，您既能直接插入图片到文档中，也可以作为一个链接插入。