形容词
中文翻译：不变的
同义词：
['unchanging', 'permanent', 'everlasting例句：1. The temperature is constant throughout the day.（温度在整个一天中保持不变。）']
例句：
-
1. The temperature is constant throughout the day.
温度在整个一天中保持不变。
-
2. The sun's rays are constant throughout the year.
太阳的光线全年都不变。
-
3. The river flows constantly, providing a constant source of life for the surrounding area.
这条河流不断流动，为周围地区提供了持续的生命之源。