名词
中文翻译：球体
同义词：
['sphere', 'sphere-shaped', 'spherical']
例句：
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1. The earth is a sphere with a diameter of about 12,756 kilometers.
地球是一个直径约12,756公里的球体。
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2. The sun is a sphere-shaped object that orbits around the center of our solar system.
太阳是一个球状物体，绕着我们太阳系的中心运行。
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3. The moon is a small sphere-shaped object that orbits around the earth.
月球是一个小的球状物体，绕着地球运行。