triplicity
triplicity[trɪˈplɪsɪti](pl. -ies)- (rare)a group of three people or things
(罕)三人一组,三件一套
■[mass noun](archaic)the state of being triple
(古)三倍,三重
语源- late Middle English (as a term in astrology): from late Latin triplicitas, from Latin triplex, triplic- 'threefold' (see triplex)
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