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Circumference Round Circle Distance Latin N Uncount 不可数名词 Place

英语单词 circumference
英美音标 英 [sə'kʌmfərəns] 美 [sər'kʌmfərəns]
中文释义 n.圆周;周围;周长
英语例句 (1) That point falls on the circumference of the circle.
(2) He went jogging around the circumference of the reservoir every morning.
(3) This tree has a circumference of 6 feet.
(4) The circumference of the earth is almost 25,000 miles.
中文例句 (1) 那一个点落在这圆的圆周线上。
(2) 他每天早晨绕着水库周围慢跑。
(3) 这棵树周长六英尺。
(4) 地球的圆周长约为两万五千英里。
vocabulary简明 The distance around a circle is called the circumference, and although circumference is often used when talking about round things, it can mean a boundary of any shape that completely surrounds something.
vocabulary扩展 It’s no coincidence that the first part of circumference looks like circle. The Latin word circum means “around,” and the root ferre is the Latin verb for “carry,” so imagine carrying a puppy around a circle pit of lava: the path you walk is the circumference. If you want to buy a new hat, you’ll need to measure the circumference of your head, and patrolling the circumference of your castle is a good way to protect against dragons.
柯林斯解释
1
[N-UNCOUNT 不可数名词](圆、地方、圆状物的)周长 The circumference of a circle, place, or round object is the distance around its edge.
  • ...a scientist calculating the earth's circumference...

    计算地球周长的科学家

  • The island is 3.5 km in circumference.

    这个岛周长3.5千米。

2
[N-UNCOUNT 不可数名词](圆、地方、圆状物的)边缘,周缘 The circumference of a circle, place, or round object is its edge.
  • 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。

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