1st key Makes the current selection a subentry of the word that you enter here. For example, if you select &quot; cold &quot; , and enter &quot; weather &quot; as the 1st key, the index entry is &quot; weather, cold &quot; . 2nd key
当前选择将成为您在此处输入的词的子条目。例如，如果您选择 &quot; cold &quot; 并输入 &quot; weather &quot; 作为第一个关键字，则索引条目为 &quot; weather, cold &quot; 。