adj.执政的，在位的，君主的，王国的，帝王的

The regnal year of the current monarch is 2023.
当前君主的在位年份是2023年。
The regnal history of England spans over a thousand years.
英格兰的在位历史跨越了一千多年。
The regnal name of Queen Elizabeth II was chosen by her father, King George VI.
伊丽莎白二世女王的在位名字是由她的父亲乔治六世国王选择的。
The regnal power of the emperor was absolute in ancient China.
中国古代皇帝的在位权力是绝对的。
The regnal ceremony of the new king was held with great pomp and circumstance.
新国王的在位仪式盛大举行。
The regnal reign of the Tudor dynasty brought about significant changes to English society.
都铎王朝的在位统治给英国社会带来了显著的变化。
The regnal period of the Roman Empire was marked by constant warfare and territorial expansion.
罗马帝国的在位时期以持续的战争和领土扩张为标志。
The regnal order of succession to the throne is determined by law.
王位继承的在位顺序由法律决定。
The regnal achievements of Emperor Qin Shi Huang were monumental and far-reaching.
秦始皇皇帝的在位成就巨大且深远。
The regnal influence of the Catholic Church has declined in recent centuries.
天主教会的在位影响力在近几个世纪有所下降。