名词
中文翻译：心率
同义词：
['heartbeat', 'pulse rate']
例句：
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1. The doctor checked her heart rate to make sure she was stable.
医生检查了她的心率以确保她稳定。
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2. She had a high heart rate after running for an hour.
她跑了一个小时后心率很高。
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3. During exercise, it's important to monitor your heart rate to avoid overexertion.
锻炼时，监测你的心率以避免过度劳累是很重要的。