形容词
中文翻译：持续的
同义词：
['unchanging', 'unvarying例句：1. The temperature is constant throughout the day.（温度在整个一天中保持不变。）']
例句：
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1. The temperature is constant throughout the day.
温度在整个一天中保持不变。
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2. The river flows through a constant landscape.
河流穿过一个一成不变的风景。
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3. The company's policy remains constant.
公司的政策始终如一。