时间: 2025-04-25 11:35:37
美: ['sɝkl]
英: ['sɜːk(ə)l]
n. 循环，周期；圆；圈子；圆形物
vi. 盘旋，旋转；环行
vt. 画圆圈；环绕…移动
最后更新时间:2025-04-25 11:35:37
词源分析：Circle来源于拉丁语“circulus”，意为“小圆”，而circulus又源自希腊语“kirkos”，都有“环绕”之意。
历史背景：首次使用可以追溯到古希腊和古罗马时期，数学和几何学中对圆的研究极为重要。
课本：Circle一词可能在**小学阶段的数学课本中出现，常用于几何部分。在牛津和美国的教材中，尤其在小学数学和科学课程中也频繁使用。
正式与非正式语境：
特殊场合：
The children played in a circle.
孩子们围成一个圈玩耍。
Draw a perfect circle on the paper.
在纸上画一个完美的圆。
The circle of friends grew larger over the years.
朋友的圈子随着时间的推移变得越来越大。
She walked in circles, trying to figure out what to do.
她绕圈走，试图弄清该做什么。
In mathematics, a circle is defined by its radius.
在数学中，圆是通过其半径定义的。
同义词：
反义词：
通过以上分析和示例，可以更全面地理解“circle”一词的用法和含义。
[N-COUNT] A circle is a shape consisting of a curved line completely surrounding an area. Every part of the line is the same distance from the centre of the area. 圆圈
例：The flag was red, with a large white circle in the centre.那面旗子是红色的，中间有一个白色的大圆圈。
[N-COUNT] A circle of something is a round, flat piece or area of it. 圆盘状物
例：Cut out 4 circles of pastry.切出4块圆形油酥面饼。
[N-COUNT] A circle of objects or people is a group of them arranged in the shape of a circle. 圈
例：...a circle of gigantic stones.…一圈巨石。
[N-COUNT] You can refer to a group of people as a circle when they meet each other regularly because they are friends or because they belong to the same profession or share the same interests. (相同兴趣、职业等的人形成的) 圈子
例：He has a small circle of friends.他有一个小小的朋友圈子。
[V-T/V-I] If something circles an object or a place, or circles around it, it forms a circle around it. 环绕
例：This is the road that circles the city.这就是那条环城路。
[V-T/V-I] If an aircraft or a bird circles or circles something, it moves around in a circle in the air. 围着…转圈; 盘旋
例：The plane circled, awaiting permission to land.飞机盘旋着，等待着陆指令。
例：There were two helicopters circling around.有两架直升飞机在周围盘旋。
[V-T] If you circle something on a piece of paper, you draw a circle around it. 把…圈出来
例：Circle the words on this list that you recognize.把这张表上你认识的字圈出来。