circumference [səˈkʌmfərəns]
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基本释义
n.圆周,周长,圆周线
英英释义
the distance around a circle , or the distance around the widest part of a circular or round object ; the line surrounding a circular space
参考例句
It's a mile round the circumference of the field. 运动场周长一英里。
The diameter and the circumference of a circle correlate. 圆的直径与圆周有相互关系。
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