"copulation," 1713, scientific Latin, from Latin coitus "a meeting together; sexual union," past participle of coire, from com- "together" (see co-) + ire "come, go," (see ion). In Middle English as coite (early 15c.). Used in English in general senses of "meeting, uniting," and also of magnetic force, planetary conjunction, etc., before sexual sense came to predominate.
双语例句
1. This, in turn, has increased their enjoyment of coitus.
继而, 这又增添了他们**合的乐趣.
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2. They must, therefore, be inserted 10 to 15 minutes before each coitus.
所以, 每次**前10-15分钟就必须放入**内.
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3. Their meeting is usually about as a result of coitus.
精卵相遇通常是**的结果.
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4. The vagina receives the penis during coitus.
**在**过程中容纳**.
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5. The intimate contact of the female sex organs during coitus can give both partners great pleasure.
