相关单词近義詞 treble 三倍的, threefold 三倍的, double 雙重的, twofold 兩倍的, triple 有三部分的, two-fold 雙麪的, dual 雙重的臨近詞three ply, three, threephase generator, three-layered node, three-quarter coat, three - phase flow, three path amplifier, three condition jack, three-layer system, three- tank system, three-way stopcock, three-world theory 返回 three-fold