circle
英 ['sɜːk(ə)l]
美['sɝkl]
	    - n. 循环,周期;圆;圈子;圆形物
 - vi. 盘旋,旋转;环行
 - vt. 画圆圈;环绕…移动
 
英英释意
- 1. ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point;
 - "he calculated the circumference of the circle"
 
- 2. an unofficial association of people or groups;
 - "the smart set goes there"
 - "they were an angry lot"
 
- 3. something approximating the shape of a circle;
 - "the chairs were arranged in a circle"
 
- 4. movement once around a course;
 - "he drove an extra lap just for insurance"
 
- 5. a road junction at which traffic streams circularly around a central island;
 - "the accident blocked all traffic at the rotary"
 
- 6. street names for flunitrazepan
 
- 7. a curved section or tier of seats in a hall or theater or opera house; usually the first tier above the orchestra;
 - "they had excellent seats in the dress circle"
 
- 8. any circular or rotating mechanism;
 - "the machine punched out metal circles"