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Circumference
01
周长
the distance around the external boundary of something
02
周长
(geometry) the length of the external boundary of a curved shape, especially a circle
03
周长
the boundary line encompassing an area or object
例子
She measured the circumference of the tree trunk to determine its age.
The athlete completed a lap around the track, covering the entire circumference in record time.
To estimate the size of the pond, we measured the circumference using a measuring tape.
The radial distance from the center of the circle determines its circumference.
The racecourse is a mile in circumference.
