He pointed out that the shape of sunspots weren't circular.

他指出，太阳黑子不是圆形的。

youdao

The nearly circular orbits of planets in our solar system led scientists to expect that planets around other stars would also reside in circular orbits.

在我们的太阳系中，行星的轨道几乎是圆形的，这使得科学家们预测，其他恒星周围的行星也会位于圆形轨道上。

youdao

Both sides of the river can be explored on this circular walk.

沿着这条环形步行道走，河的两边就都可以看得到了。

《柯林斯英汉双解大词典》

The painting hangs in a circular room and completely surrounds visitors standing in the middle of the space.

VOA: special.2010.08.04

It's sort of circular reasoning.

某种程度上这是一个循环推理

耶鲁公开课 - 欧洲文明课程节选

You have- and another example of that that would be true, is let's say you have a child who lives in this sort of circular area here, who lives here and his friends with a child who lives here.

我们还有个现实案例,假如你有个小孩,居住在我画圈的这块区域,他住在这儿,而他的朋友们住在这儿

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But because of the circular logic of appeasement, there was no way that Olmert could fight to win.

CENTERFORSECURITYPOLICY: The Path to the Next Lebanon War

Her leg bones confirm that A. afarensis could walk upright, though her ape-like upper body and the arrangement of the semi-circular canals of her ears, which are the location of the sense of balance, suggest she also spent a lot of time climbing trees.

ECONOMIST: An ancient child has been discovered

The Chinese central government has, in past crises, sustained the momentum of the economy by creating circular flows of cash, using money from one state institution to bail out other ones.

FORBES: China's Economy: The Correction History Will Remember