circular

1. ADJ Something that is circular is shaped like a circle. 圓形的

...a circular hole twelve feet wide and two feet deep. …一個12英尺寬、2英尺深的圓洞。

2. ADJ A circular journey or route is one in which you go to a place and return by a different route. (旅行或路線) 環行的

Both sides of the river can be explored on this circular walk. 沿著這條環形步行道走，河的兩邊就都可以看得到了。

3. N-COUNT A circular is an official letter or advertisement that is sent to a large number of people at the same time. 函件; 通告

The proposal has been widely publicized in press information circulars sent to 1,800 newspapers. 通過曏1800份報紙發送新聞通告，這項提議得到了廣泛地宣傳。