名词
中文翻译：Unknown
同义词：
['emission', 'radiate']
例句：
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1. The sun's rays emanate from the center of the solar system.
太阳的光线从太阳系中心发出。
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2.The scientist radiated with excitement ashe presented his findings.
科学家兴奋地展示了他的发现。
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3. Radiation is a form ofenergy that spreads out from a source.
辐射是一种从源头传播的能量形式。