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pacesetter
A person or thing that sets the standard for others to follow.
同義字
artificial pacemaker
A small electronic implant that takes charge of your heart's rhythm.
同義字
cardiac pacemaker
A special bit of heart tissue that controls your heartbeat.
同義字
SA node
A special bit of heart tissue that controls your heartbeat.
同義字
sinoatrial node
A special bit of heart tissue that controls your heartbeat.
同義字
pacer
A lead horse that sets a fast speed for the other runners.
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