性关系

tā men céng jīng yǒu xìng guān xi

他们曾经有性关系。

They had a sexual relationship in the past.

xǔ duō lǎo rén yī rán yǒu mǎn yì de xìng guān xi

许多老人依然有满意的性关系。

Many elderly people continue to have satisfying sexual relationships.