名词
中文翻译：心脏
同义词：
['heart', 'circulatory system', 'blood vessel']
例句：
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1. Theheart is the organ responsible for pumping blood throughout the body.
心脏是负责将血液泵送到全身的器官。
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2.The doctor advised her to exercise regularly to maintain a healthy heart.
医生建议她定期锻炼以保持健康的心脏。
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3. The patient's heart rate was elevated during the test.
在测试中，患者的心率升高了。