n.两头政治；两头政权（一个政权归两个统治者的政府，等于dyarchy）

In ancient Sparta, power was held by two kings, establishing a diarchy.
在古斯巴达，权力由两位国王共同掌握，形成了二元君主制。
The Roman Empire experienced a period of diarchy under the co-emperors, Augustus and Tiberius.
罗马帝国在奥古斯都和提比略两位共治皇帝时期经历了一段二元君主制时期。
Some constitutional scholars argue that the UK's monarchy and parliament form a diarchy.
一些宪法学者认为，英国的君主制与议会共同构成了一种二元体制。
The island nation of Malta was once governed by a unique system of diarchy known as the "Two Captains Regent.
马耳他岛国曾由一个独特的二元统治体系——“两位摄政上尉”管理。
In the fictional world of Middle-earth, the kingdom of Gondor was traditionally ruled by a steward and a king, resembling a diarchy.
在托尔金的中土世界中，刚铎王国传统上由摄政王和国王共同统治，类似于二元君主制。
The concept of diarchy can also be observed in certain corporate structures where two CEOs share leadership responsibilities.
在某些公司结构中也可以观察到二元制的概念，即两位CEO共享领导职责。
The early years of the Soviet Union saw a form of diarchy between Lenin and Stalin before the latter's rise to sole leadership.
苏联初期，在斯大林成为唯一领导人之前，列宁和斯大林之间存在着一种二元领导形式。
The idea of a diarchy was proposed for the governance of some colonial territories, with local and imperial authorities sharing power.
对于某些殖民地的治理，曾提出过二元制的想法，让地方和帝国当局共享权力。
In the biological kingdom of fungi, dual ruling systems can occur within certain species, resembling a microcosm of diarchy.
在真菌界中，某些物种内部会出现双统治系统，这类似于二元君主制的微观体现。
The fictional planet of Coruscant in the Star Wars universe had a Galactic Senate and a Supreme Chancellor, creating an institutionalized diarchy.
在《星球大战》宇宙中的虚构行星科洛桑，银河议会议长和最高议长的存在构成了制度化的二元体制。