the act of carrying something 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
on a railroad flatcar
同义词：pickaback??/??pig-a-back
on the back or shoulder or astraddle on the hip
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。