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copulation noun

  /kɒp.jəˈleɪ.ʃən/
  • (uncountable) Sexual procreation between a man and a woman or transfer of the sperm from male to female; usually applied to the mating process in nonhuman animals; coitus; coition.
 性交

copulate

交尾

copulate verb

  /ˈkɒp.jʊ.leɪt/ , /ˈkɒp.jʊ.lət/ , /ˈkɔ.pjə.leɪt/ , /ˈkɔ.pjə.lət/
  • (somewhat, _, formal) To engage in sexual intercourse.
 交尾する
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