相关单词近义词 allied 联合的, attached 附加的, associated 联合的, linked 连接的, added 附加的, pig-a-back 在铁道平车上..., pickaback 骑在背上肩上...临近词piggy, piggy-backing, piggyback board, piggyback rights, piggy backsystem, piggyback system, piggyback twistor, piggyback control, piggyback traffic, piggyback service, piggy back system相似词pigeonhole, piggy, piggy bank, piggy in the middle, pigheaded, piglet, pigment, pigmentation, 返回 piggyback