名词
中文翻译：缓解井
同义词：
['relaxation well', 'relief tank', 'relief well', 'relief pool']
例句：
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1. The patient was given a painreliever to help him relax.
病人被给予止痛药以帮助他放松。
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2. The reliefwell is located in the center of thepark.
这个缓解井位于公园的中心。
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3. The reliefwell was filled with clean water after theflood.
洪水过后，这个缓解井被清洁的水填满了。