新东方-柯林斯雅思备考词典

radius

英  [ˈreɪdiəs]
    

[NOUN]

    NOUN. 名词
  • radii

    1[SING 单数型名词] 范围

    The radius around a particular point is the distance from it in any direction.

    双语例句

    例:

    Nick has searched for work in a ten-mile radius around his home.

    尼克已经在家周围10英里的范围内找工作了。

    例:

    within a fifty-mile radius of the town.

    以该镇为中心方圆50英里的范围内。

    例:

    Fragments of twisted metal were scattered across a wide radius.

    扭曲的金属碎片散落在一个很大的范围内。

    2[C 可数名词] 半径

    The radius of a circle is the distance from its centre to its outside edge.

    双语例句

    例:

    He indicated a semicircle with a radius of about thirty miles.

    他标示出一个半径大约30英里的半圆。

    例:

    the radius of a circle is equal to one-half its diameter.

    一个圆的半径相当于其直径的一半。