Circumference
01
周长, 圆周
the distance around the external boundary of something
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
circumferences
例子
The athlete completed a lap around the track, covering the entire circumference in record time.
运动员完成了跑道的一圈，以创纪录的时间覆盖了整个周长。
02
周长
(geometry) the length of the external boundary of a curved shape, especially a circle
例子
The formula for finding the circumference of a sphere involves multiplying the diameter by π (pi).
求球体周长的公式涉及将直径乘以π（pi）。
03
周长, 周边
the boundary line encompassing an area or object
