piggyn.小猪adj.贪心的
piggy-backingn.利用他人经商;借名人宣传
piggyback board级联式插件板
piggy backsystem集装箱装法
piggyback system子运载系统
piggyback twistor背负双绞扭存储器
piggyback traffic铁公路联运
piggyback service铁路平车运输
piggy back system背负式运输法
"the trailer rode piggyback across the country"
"she carried her child piggyback"
"He piggybacked her child so she could see the show"
"an amendment to piggyback the current law"