procreation
  生產,生殖
  pro·cre·ation /ˌprokrɪˈeʃən/ 名詞
  繁殖,生育
  Pro·cre·a·tion n.  The act of begetting; generation and production of young.
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  procreation
       n : the sexual activity of conceiving and bearing offspring
           [syn: reproduction, breeding, facts of life]