名词
中文翻译：圆规同义词
同义词：
['circle-drawing compass', 'circumference', 'radius']
例句：
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1. The teacher uses a ruler to draw circles on the blackboard.
老师用直尺在黑板上画圆。
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2. The circle of light cast by the moon illuminates the forest.
月亮投下的光环照亮了森林。
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3. The engineer used a circle-drawing compass to measure the diameter of the pipe.
工程师用圆规测量管道的直径。