translation.en: 1960, the first internal pacemaker was implanted, hopefully a little smaller than that one that you see there, and the technology has continued to move forward.
translation.zh: 1960年，第一个体内心脏起搏器被植入， 希望是比大家在这看到的要小一些， 之后，这方面的技术一直在不断地发展。