名词
中文翻译：持续的疼痛
同义词：
['constant pain', 'persistent pain']
例句：
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1.The constant pain in her back was driving her crazy.
她背部的持续疼痛让她发疯。
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2.She had been through a lot of hardships and still suffered from constant pain.
她经历了许多困难，仍然遭受着持续的疼痛。
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3. The patient's gnawing pain is slowly subsiding.
病人的持续疼痛正在逐渐减轻。