您要查找的是不是：
- 圆环沿人行道滚动.The hoop rolled along the pavement.
- 圆环沿人行道滚动。The hoop rolled along the pavement.
- 圆环traffic circle
- 圆circle
- 圆的roundish
- 圆环法ring method
- 圆管circular tube
- 圆度circular degree
- (可)除环skew field
- 圆环壳circular ring shell
- 圆棒round bar
- 圆底烧瓶round bottom flask
- 圆板disk
- 圆环面torus
- 圆边full round edge
- 圆凳round stool
- 圆度仪roundness measuring equipment
- 圆滚线，摆线圆周上任一点在一条直线上滚动时所形成的曲线The curve traced by a point on the circumference of a circle that rolls on a straight line.
- 100美圆可兑470元。It's470 yuan for100 dollars.
- 圆花窗，玫瑰花窗A rose window.
