boneshaker是什么意思？

boneshaker

英[ˈbəʊnʃeɪkə(r)] 美[ˈboʊnʃeɪkə(r)]

• n. 破旧颠簸的交通工具（尤指自行车）；

英英词典释义

• Noun
  1. any wheeled vehicle that is dilapidated and uncomfortable;
  "that old bike without rubber tires was a real boneshaker"