cohabitant

🇬🇧/kəʊˈhæbɪtənt/ 🇺🇸/koʊˈhæbɪtənt/ 60
a member of a couple who live together and have a sexual relationship without being married."support for additional rights for cohabitants following separation"

noun [专属名词]同居者

something that coexists with another."humans rely on their microbial cohabitants"

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