circumference
US /sɚˈkʌm.fɚ.əns/
UK /səˈkʌm.fər.əns/
名词
周长, 圆周
the distance around something, especially a circle
示例:
•
The circumference of the earth is about 24,901 miles.
地球的周长大约是24,901英里。
•
Measure the circumference of the tree trunk.
测量树干的周长。