形容词
中文翻译：持续的
同义词：
['unchanging', 'permanent']
例句：
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1.The sun always rises in the east, a constant reminder of life's cycles.
太阳总是在东方升起，这是生命循环的一个恒久提醒。
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2. The company's policy of constant innovation has led to significant growth.
公司不断创新的政策导致了显著的增长。
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3. The constant flow of traffic makes it difficult for pedestrians to cross the street safely.
不断的交通流动使得行人过街时很难安全地通过。