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- 圆的轴线是其直径。
The axis of a circle is its diameter.
- 我们能用半径计算出圆的面积。
We can compute the circular area with radius.
- 满月呈圆形。
The full moon has a circular form.
- 他把苹果放在一个圆盘子里。
He put the apples on a round plate.
- 铙钹是一对黄铜圆盘。
Cymbal is a pair of round brass plates.
- 现在我们开始用圆规画一个圆。
Now we begin to draw a circle with compasses.
- 正方形有四条边，而圆形没有边。
A square has four sides but a circle has no sides.
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