1817Blackw. Mag. I. 38 A modification in the shape or bumpiness of its [the heart's] apex.
1886Bicycling News 17 Sept. 748/2 Its bumpiness excelled any other wood-pavement bumpiness in London.
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。