having the shape of a circle; round 圆形的；环形的；圆的 a circular building 圆形建筑物 He had round unblinking eyes and a perfectly circular head. 他的眼睛圆溜溜的，一眨不眨，脑袋也圆圆的。 The crater was two miles across and roughly circular. 这个火山口有 2 英里宽，大致呈圆形。
Oxford Collocations Dictionaryverbs- be
- look
- perfectly
- almost
- nearly
- …
moving around in a circle 环行的；绕圈的 a circular tour of the city 环城游览 Using small circular movements, massage the muscles on either side of the spine. 使用小的圆周运动，按摩脊柱两侧的肌肉。
(of an argument or a theory 论点或理论 using an idea or a statement to prove something that is then used to prove the idea or statement at the beginning 循环论证的（以一种观点证明另一观点，接着再用后一种观点反过来去证明前一观点） (of a letter 信函 sent to a large number of people 大量送发的；传阅的
Word Originlate Middle English: from Old French circulier, from late Latin circularis, from Latin circulus ‘small ring’, diminutive of circus ‘ring’.