pacemakers是什么意思？

pacemakers

英['peɪsmeɪkəz] 美['peɪsmeɪkəz]

例句

柯林斯高阶英汉双解学习词典释义

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心脏起搏器

A pacemaker is a device that is placed inside someone's body in order to help their heart beat in the right way.
例句
She was fitted with a pacemaker after suffering serious heart trouble. 她患上严重的心脏病后安装了心脏起搏器。
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（赛跑中的）领跑员

A pacemaker is a competitor in a race whose task is to start the race very quickly in order to help the other runners achieve a very fast time. Pacemakers usually stop before the race is finished.

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