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engage in copulation
The animals engaged in copulation during the mating season.
动物在交配季节进行交配。
交合；交媾
copulations — plural of copulation
先理解核心含义，再看它在真实句子里的用法。
交合；交媾
the act of sexual intercourse
The animals engaged in copulation during the mating season.
动物在交配季节进行交配。
指人类性交
结合或连接的行为；联合；结合
The act of coupling or joining; union; conjunction.
男女之间的性繁殖或精子从雄性转移到雌性；通常用于非人类动物的交配过程；性交；交媾
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.
During the mating season, the birds engage in copulation several times a day.
在交配季节，这些鸟每天交配几次。
The biology textbook explained the process of copulation in insects in detail.
生物学教科书详细解释了昆虫的交配过程。
Researchers observed that copulation in these fish lasts only a few seconds.
研究人员观察到这些鱼的交配仅持续几秒钟。
The animals engaged in copulation during the mating season.
动物在交配季节进行交配。
The male transfers sperm to the female during copulation.
雄性在交配时将精子传给雌性。
常用于科学描述。
Copulation between the two species has been observed in the wild.
在野外已观察到这两个物种之间的交配。
Not this
They copulation every year.
Use this
They copulate every year.
误将名词“copulation”用作动词，应使用动词“copulate”的正确形式。
Not this
He observed many copulation.
Use this
He observed many copulations.
“copulation”为可数名词，复数形式需加-s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
强迫交配
Forced copulation is common in some species of waterfowl.
强迫交配在某些水禽物种中很常见。
交配时长
The scientists recorded copulation duration for each pair of beetles.
科学家记录了每对甲虫的交配时长。
交配行为
The team analyzed copulation behavior in wild chimpanzees.
该团队分析了野生黑猩猩的交配行为。
在交配过程中
Sperm is transferred from the male to the female during copulation.
交配过程中，精子从雄性转移到雌性。
成功交配
Successful copulation does not always result in fertilization.
成功交配并不总会导致受精。
进行交配
These primates engage in copulation throughout the year.
这些灵长类动物全年都会进行交配。
Use copulations naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 couple（一对）：copulation 开头 co- 与 couple 相同，想象一对动物在交配。
语域：formal 常见场景：动物行为研究、学术写作、正式报告 copulation 通常用于学术或正式语境，尤其在动物行为学中描述交配；日常口语中较少使用，更常说 mating 或 have sex。
通常指动物交配，也可用于人类，但较正式或生物学用语。
Dictionary facts from ECDICT, WIKTIONARY.