形容词
中文翻译：持续的
同义词：
['unchanging', 'everlasting', 'perpetual例句：1. The sun shines constantly throughout the day.（太阳整日照耀。）']
例句：
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1. The sun shines constantly throughout the day.
太阳整日照耀。
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2. The river flows constantly through thevalley.
河流不断地流过山谷。
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3. The weatheris constant in this region.
该地区的天气始终如一。