Here is as pacemaker and this pacemaker does the same thing that a heart pacemaker does, it generates periodic electrical signals.
它和心脏起搏器发挥的作用相似,发出周期性的电信号
Once in a while you'll have to talk to your neighbor and say, "Can you please pass me my pacemaker that fell down?"
有时候你需要对你旁边的同学说,你能帮我捡一下我的心脏起搏器吗
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