相关单词同義詞double, two, tier, 近義詞 double 雙重的, twofold 兩倍的, duplicate 副本, twin 孿生的, treble 三倍的, duple 二倍的, two-fold 雙麪的, three-fold 三倍的, threefold 三倍的臨近詞dualism, DU, Duall, Duald, Duale, duals, Duala, dually, Dualeh, Dualar, dualin, Dualoy相似詞dryer, drystone wall, drywall, DSL, dual carriageway, dual-purpose, dualism, duality, 返回 dual