名词
中文翻译：肛门括约肌
同义词：
['anal sphincter', 'anal sphincter muscle例句：1. The doctor advised him to exercise regularly to maintain his health.（医生建议他定期锻炼以保持健康。）']
例句：
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1. The doctor advised him to exercise regularly to maintain his health.
医生建议他定期锻炼以保持健康。
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2.During sexual intercourse, the anal sphincter plays a crucial role in preventing leakage.
在性交过程中，肛门括约肌起着至关重要的作用，以防止泄漏。
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3. The patient was unable to control his bowel movements and had to seek medical attention.
病人无法控制他的排便，并不得不寻求医疗帮助。