基本解释[经济学]平台拖车英汉例句双语例句One person took so many books that he needed a dolly to wheel them to his car.有一个人甚至因为挑的书太多，以至于需要用一个手推车来帮他 把书运到自己的车上。词组短语短语dolly y car 平台拖车专业释义经济学平台拖车