| 释义 |
pace maker短语¹⁴⁴⁹⁷²⁺²
基本英英
心房脉冲产生器,带跑人
名词 pacemaker:
a leading instance in its fielda specialized bit of heart tissue that controls the heartbeatan implanted electronic device that takes over the function of the natural cardiac pacemakera horse used to set the pace in racing |