我是军事医学科学院的研究员,虽然今年已78岁了,但仍在科研一线忙忙碌碌。我1950年从美国回国,当时没有人问我为什么要回来。而现在一些年轻人却向我提出这个问题,还说:“如果不回来,现在不也是美国公民了。”我回答很干脆;“回国是不需要理由的,不回国才需要理由。”我还对这些年轻人说:“我有近30年在旧中国度过,留学回国以后,亲眼看到新中 I am a researcher at the Academy of Military Medical Sciences, and although I am 78 years old this year, I am still busy with research. I returned from the United States in 1950, when no one asked me why I came back. Now some young people have asked me this question and have said: ”If you do not come back, it is not a U.S. citizen now.“ ”My answer is very simple.“ There is no reason to return to China and no reason to return to China. ”I also told these young people: " I spent nearly 30 years in the old China, after returning from studying abroad, I saw the new