changing location by moving back and forth 同義詞:swing, vacillation,
characterized by a buoyant rhythm; "an easy lilting stride"; "the flute broke into a light lilting air"; "a swinging pace"; "a graceful swingy walk"; "a tripping singing measure" 同義詞:lilting, swingy, tripping,
百科解釋
Swinging or (rarely) partner swapping is a non-monogamous behavior, in which singles or partners in a committed relationship engage in sexual activities with others as a recreational or social activity.