名词
中文翻译：圆周率
同义词：
['circumference', 'circle', 'roundness例句：1. The circle of light around the sun is a reminder of its circumference.（围绕太阳的光环提醒我们它的周长。）']
例句：
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1. The circle of light around the sun is a reminder of its circumference.
围绕太阳的光环提醒我们它的周长。
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2.The circular motion of the car is due to the centrifugal force.
汽车的圆周运动是由于离心力造成的。
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3. The circular path of the ball is a testament to its roundness.
球的圆形路径证明了它的圆润。