n.圆（形；度）；环（圈）状；圆形性；环形性

The argument was circular; it didn't prove anything.
这个论证是循环的，什么也没证明。
The circular motion of the planets around the sun is an example of celestial mechanics.
行星围绕太阳的圆周运动是天体力学的一个例子。
The circular design of the building gave it a unique aesthetic appeal.
这座建筑的圆形设计赋予了它独特的美学吸引力。
The company's circular about the annual general meeting was sent out last week.
公司关于年度股东大会的通告上周已经发出。
The concept of circular economy has gained popularity in recent years.
循环经济的概念近年来越来越受欢迎。
The circular path of the roller coaster provided thrills for the riders.
过山车的圆形路径为乘客提供了刺激。
The circular scar on his forehead was from a childhood accident.
他额头上那个圆形疤痕是小时候意外留下的。
The circular table made it easy for everyone to see each other during meetings.
会议桌上圆形的设计使得每个人在会议期间都能看到彼此。
The circular reasoning used in the debate was criticized by many experts.
辩论中使用的循环推理被许多专家批评。
The circular flow of income and expenditure is a fundamental concept in macroeconomics.
收入和支出的循环流动是宏观经济学中的一个基本概念。