名词
中文翻译：相位
同义词：
['cycle', 'period', 'cycle of life', 'life cycle例句：1. The astrophysicist discovered the phases of Venus during his research.（这位天体物理学家在研究中发现了金星的相位。）']
例句：
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1. The astrophysicist discovered the phases of Venus during his research.
这位天体物理学家在研究中发现了金星的相位。
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2. The new moon is the first phase of the lunar cycle.
新月是月球周期的第一个阶段。
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3.The earth's orbit around the sun follows a predictable phase of its cycle.
地球围绕太阳的轨道遵循其周期可预测的阶段。