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1.During exercise, my heart rate increases significantly.
锻炼时，我的心率显著增加。
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2. He was diagnosed with atrial fibrillation and required pacemaker therapy to control his heart rate.
他被诊断出心房颤动，需要起搏器治疗来控制他的心率。
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3.The patient's heart rate accelerated after receiving the medication.
病人在服用药物后心跳加快。