circumference

英 [səˈkʌmfərəns]

美 [sərˈkʌmfərəns]

n. 圆周; 圆周长

BNC.15114 / COCA.15774

牛津词典

noun

N-UNCOUNT (圆、地方、圆状物的)周长
Thecircumferenceof a circle, place, or round object is the distance around its edge.
1. ...a scientist calculating the earth's circumference...
  计算地球周长的科学家
2. The island is 3.5 km in circumference.
  这个岛周长3.5千米。
N-UNCOUNT (圆、地方、圆状物的)边缘，周缘
Thecircumferenceof a circle, place, or round object is its edge.
1. Cut the salmon into long strips and wrap it round the circumference of the bread.
  把鲑鱼切成长条，缠裹在面包上。

noun

the size of something as given by the distance around it
Synonym:perimeter
the length of the closed curve of a circle
the boundary line encompassing an area or object
1. he had walked the full circumference of his land
2. a danger to all races over the whole circumference of the globe
Synonym:circuit

Studies comparing changes in waist circumference among different groups have yielded similar results.
两项研究都对不同组别腰围的变化进行了比较，并得出了相似的结论。
More recently, lower thresholds for waist circumference have been recommended for Asian populations.
最近，对亚洲人群推荐了一个更低的腰围阈值。
The PI method returns the ratio of a circles circumference to its diameter.
PI方法返回圆周与直径的比率。
When would I ever need to compute the circumference of a circle?
我几时曾需要计算圆周长了？
That point falls on the circumference of the circle.
那一个点落在这圆的圆周线上。
Head and chest circumference are checked on all children under two years of age.
两岁以下的婴儿都应测量头围和胸围。
The teacher pointed to the circle on the blackboard and explained the terms "circumference" and "diameter".
老师指着黑板上的圆，解释了“圆周”和“直径”这两个术语。
A circle has diameter, radius and circumference.
圆有直径，半径和圆周。
I have to have a whole number of wavelengths to get around the circumference.
我必须要有个关于波长的总体数字，测量周长。
The lake has a circumference of 800 li.
那个湖方圆800里。