1. 名詞
   不可數名詞: 動物的: 交配, 交尾
   (人的)性交
   

   同義字詞
   coitus,intercourse,lovemaking,relations,sex,sex act,sexual intercourse,sexual relations
   

例句

1. Copulation occurs over 10 to 30 minutes.
2. Copulation normally lasts 10–20 seconds.
3. Vengeful, evil copulation mixed with death.
4. This is referred to as "remote copulation ".
5. After arriving at winter caves, copulation occurs.
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