1.(大国)并吞(小国);【史】(保留旧君主名义上的主权而)合并(其国)
2.使处于中间[附属]地位
3.进行调解;【史】成为神圣罗马帝国的间接属国
1.to take control of another country but allow its ruler to retain his or her title and have some role in governing the country