名词
中文翻译：心律失常
同义词：
['arrhythmia', 'tachycardia', 'bradycardia']
例句：
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1.He had atrial fibrillation and was having trouble breathing.
他患有心房颤动，呼吸困难。
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2. The doctor prescribed medication to help regulate his heart rhythm.
医生开了药来帮助调节他的心跳节律。
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3. During the exam, he experienced palpitations and felt like he was having an arrhythmia.
考试期间，他感到心悸，感觉像是心律失常。