复数： circumferences

提示：点击例句中的单词，就可以看到词义解释

That number includes only islands with a circumference of at least 100 meters , or yards .

这个数字只包括周长至少100米或100码的岛屿。

When would I ever need to compute the circumference of a circle ?

我几时曾需要计算圆周长了？

The area was once enclosed by a city wall that was 10m high and five kilometres in circumference , built in 1555 and torn down in 1911 .

这个区域曾经被高10米，周长达5公里的城墙所包围，城墙建于1555年，拆毁于1911年。

He then estimated the distance between the two locations and multiplied by 50 to derive the circumference .

然后他估算出两地间的距离，再乘上50便是地球的周长。

The physics of the small requires big machines : the lhc is a ring with a circumference of 27km ( 17 miles ) .

微观世界物理需要大型机器：lhc是个周长27公里（17英里）圆环状装置。