diameter

dai'æmitә
四级六级考研托福雅思GRE Collins 2

英文释义

n. the length of a straight line passing through the center of a circle and connecting two points on the circumference
n. a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)

中文翻译

n. 直径
[医] 直经, 径

2
Collins 星级
4,613
BNC 频率
5,253
使用频率

记忆技巧

diameter 由两个部分组成：前缀 dia- 意为“通过，穿过”，后缀 -meter 意为“测量”。结合起来可以理解为“测量直径”，即测量一个圆通过中心的宽度。

例句

1. The diameter of the circle is five centimeters.
这个圆的直径是五厘米。
2. To find the area of a circle, you need to know its diameter.
要计算一个圆的面积，你需要知道它的直径。
3. The diameter of the tree trunk was measured to be one meter.
树干的直径被测量为一米。

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