piggyback
名词 piggyback:
the act of carrying something piggyback
动词 piggyback:
ride on someone's shoulders or back
haul truck trailers loaded with commodities on railroad cars
haul by railroad car
support on the back and shoulders
bring into alignment with
副词 piggyback:
on a railroad flatcar
同义词:pickaback, pig-a-back
on the back or shoulder or astraddle on the hip
同义词:pickaback, pig-a-back