名词
中文翻译：直肠扩张器
同义词：
['rectal catheter', 'rectal balloon', 'rectal balloon catheter']
例句：
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1.The patient was given a rectal dilator to relieve the pain.
患者被给予直肠扩张器以缓解疼痛。
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2.The doctor inserted a rectal dilator into the patient's rectum to check for blockage.
医生将直肠扩张器插入患者的直肠中以检查是否有阻塞。
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3.The patient had to use a rectal dilator for several days before he could resume normal activities.
患者不得不使用直肠扩张器几天后才能恢复正常活动。