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Pacemaker
01
rozrusznik serca, stymulator serca
an electronic device implanted inside a person's body to help regulate their heart rate
02
przodownik, tempomat
a horse used to set the pace in racing
03
rozrusznik serca, stymulator serca
a specialized bit of heart tissue that controls the heartbeat
04
prekursor, lider
a leading instance in its field
