全部

1·The territory ruled by a duke or duchess; a dukedom.

由大公或女大公统治的领土。

2·And within a dukedom, the struggle for power frequently occurred.

而且，在一个公国内部，权力之争也时常发生。

3·The old man said, the duke of Chen is trusted by the king and his dukedom has good relationship with ours.

老人说：“陈国公爵受到周天子的信任，而且陈国和我国关系很好。”

公国

1·And within a dukedom, the struggle for power frequently occurred.

而且，在一个公国内部，权力之争也时常发生。