新东方-柯林斯雅思备考词典

radiusIELTS重点词汇

英 [ˈreɪdiəs]

[NOUN]

词汇频率：

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。

新东方在线雅思考试热词