"intercourse" in Chinese (Simplified)
性交性关系
Definition
“Intercourse”通常指人与人之间的性行为。在较古老或正式的语境中，也可指群体之间的交流或互动。
Usage Notes (Chinese (Simplified))
“Intercourse”非常正式，多用于医学、法律或正式讲座中，日常口语一般说“sex”。用作交流或互动的意思已经很少见。
Examples
They had intercourse for the first time last year.
他们去年第一次发生了**性关系**。
The doctor asked if they had engaged in intercourse.
医生问他们是否发生过**性关系**。
Intercourse can transmit diseases without protection.
**性交**没有防护措施时可传播疾病。
He avoided any discussion about intercourse in front of his parents.
他在父母面前避免谈论**性关系**。
In old books, 'social intercourse' means people talking or meeting each other.
在旧书中，'social **intercourse**' 指的是人们的交流或聚会。
She was embarrassed when the topic of intercourse came up in class.
课堂上谈到**性关系**时，她感到很尴尬。