coitus [ˈkoʊɪtəs]

例句:

• This, in turn, has increased their enjoyment of coitus.
  继而, 这又增添了他们性交合的乐趣.
  
• They must, therefore, be inserted 10 to 15 minutes before each coitus.
  所以, 每次性交前10-15分钟就必须放入阴道内.
  
• Their meeting is usually about as a result of coitus.
  精卵相遇通常是性交的结果.
  
• Then he heard the noise of coitus close to him.
  来自NEWYORKER
• This act of atomic coitus created a mass sufficient to produce a critical reaction.
  来自NEWYORKER
• I am a Stage-IV prostate cancer patient and no interest in coitus, yet i still crave for companionship.
  来自SA