gǔ / shū / zhōng / cháng / yòng / jiāo / hé / biǎo / shì / nán / nǚ / fā / shēng / xìng / guān / xì

古书中常用“交合”表示男女发生性关系。

古书中常用“交合” to refer to sexual relations between a man and a woman.