He carried the child pickaback.

他背着。

Look from the history, majority of local transportation company is to build the old business at 50 time, recumbent person pulls the development of original work configuration of pickaback to rise.

历史上看,地方交通企业多数是建于50年代的老企业,靠着人拉肩扛的业形态发展起来的。