cop·u·late /ˈkɑpjəˌlet/
  (vi.)交媾,交配,交尾(a.)連接的,配合的
  cop·u·late /ˈkɑpjəˌlet/ 不及物動詞
  Cop·u·late a.
  1. Joined; associated; coupled. [Obs.]
  2. Gram. Joining subject and predicate; copulative.
  Cop·u·late v. i. [imp. & p. p. Copulated; p. pr. & vb. n. Copulating.] To unite in sexual intercourse; to come together in the act of generation.
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  copulate
       v : make love; "Birds mate in the Spring" [syn: mate, pair,
           couple]