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now, when we think about changing human nature, the first thing that comes to mind are these human modification technologies -- growth hormone therapy, cosmetic surgery, stimulants like ritalin, adderall, anti-depressants, anabolic steroids, artificial hearts.
那么，当我们考虑改变人类本质时， 首先想到的 便是那些人类改造技术—— 荷尔蒙生长疗法，整容手术， 如利他林，安非他命缓释剂之类的兴奋剂，抗抑郁剂， 合成代谢类固醇，人造心脏。