名词
中文翻译：脉冲
同义词：
['beat', 'throb', 'pulse', 'pulsate']
例句：
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1.He felt his heart pounding in his chest as he ran.
他跑步时感到心脏在胸腔里砰砰直跳。
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2.The doctor checked her pulse to make sure she was still alive.
医生检查了她的脉搏，确保她还活着。
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3. The baby's heart began to pulsate with life.
婴儿的心脏开始跳动，充满了生命。