1
have sexual intercourse with sb
常见搭配，'have'是轻动词。
They had sexual intercourse after the wedding.
他们在婚礼后发生了性交。
性交；性行为
先理解核心含义，再看它在真实句子里的用法。
性交；性行为
the act of having sex; sexual activity between two people involving genital contact
They had sexual intercourse after the wedding.
他们在婚礼后发生了性交。
性交或生殖器与生殖器的性接触。
Coitus or genital-genital sexual contact.
通常涉及阴道、肛门或口腔插入的性行为,至少在两个生物体之间。
Sexual interaction, usually involving vaginal, anal, or oral penetration, between at least two organisms.
The couple sought counseling to discuss their issues with sexual intercourse.
这对夫妇寻求咨询，讨论他们在性交方面的问题。
In biology class, students learned about the role of sexual intercourse in reproduction.
在生物课上，学生们了解了性交在繁殖中的作用。
Consent is essential before engaging in sexual intercourse.
进行性交前必须征得同意。
常见搭配，'have'是轻动词。
They had sexual intercourse after the wedding.
他们在婚礼后发生了性交。
较正式，常用于书面语。
The study surveyed how often couples engage in sexual intercourse.
这项研究调查了夫妇进行性交的频率。
用于描述双方关系。
Sexual intercourse between unmarried partners is sometimes stigmatized.
未婚伴侣之间的性交有时会被污名化。
Not this
They did sexual intercourse last night.
Use this
They had sexual intercourse last night.
英语中表示‘进行性交’需用动词‘have’，而非‘do’。‘do’常用于泛指行动或活动，而‘have intercourse’是固定搭配。
Not this
Sexual intercourse is a important part of relationship.
Use this
Sexual intercourse is an important part of a relationship.
错误包括冠词使用：元音前应用‘an’而非‘a’，且‘relationship’前需加不定冠词。此外，注意可数名词单数形式前需冠词。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use sexual intercourse naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.