If you group your report by a certain field, all records with the same value of that field will be kept together in one group. The Groups box shows the fields in an order from top to bottom.
“组合”框按从上到下的顺序显示字段。您可以选择任意字段，然后单击“上移”或者“下移”按钮将此字段在列表中上下移动。