相关单词近义词 double 双重的, twofold 两倍的, treble 三倍的, doubled 两倍的, three-fold 三倍的, threefold 三倍的, dual 双重的临近词twotier, two, two-point drawing, two different doses, two-color plating, two stage estimator, two-courses study, two-piece catsuit, two-digit display, two pairs of gloves, two piece connector, two-wire repeater 返回 two-fold