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The axis of a circle is its diameter.是什么意思？

The axis of a circle is its diameter.

圆的轴线是其直径。

相关词汇
the axis of circle is its diameter

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

axis

n. 轴，轴线，[政]轴心，轴心国，[植]茎轴；

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

circle

n. 圆，圆状物，一圈，圈子；vt. 圈出，包围，绕…运转；vi. 环绕，盘旋；

is

vt.& vi. 是（be的三单形式；n. 存在；

its

pron. (it的所有格形式)它的，厥；

diameter

n. 直径，直径长，放大率；
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