ménage à trois
noun /meɪˌnɑːʒ ɑː ˈtwɑː/
/meɪˌnɑːʒ ɑː ˈtwɑː/
(plural ménages à trois
[usually singular] (from French) /meɪˌnɑːʒ ɑː ˈtwɑː/
/meɪˌnɑːʒ ɑː ˈtwɑː/
)- a situation where three people, especially a husband, wife and lover, live together and have sexual relationships with each other
三人同居，三角家庭（尤指夫妇和情人同居）