n. the size of something as given by the distance around it
n. the boundary line encompassing an area or object
n. the length of the closed curve of a circle
词态变化
复数形式:circumferences
常见例句
1
in circumference
2
It is closely adapted to the curve of the wheel through about a quarter of its circumference, and prevents the escape of the water until it has spent its force upon the wheel
3
A wheel without teeth, used to turn a similar one by the friction of bristles or something brushlike or soft attached to the circumference. A circular revolving brush used by turners, lapidaries, silversmiths, etc., for polishing.
4
A little cable less than ten inches in circumference.
5
n the length of a straight line passing through the center of a circle and connecting two points on the circumference
