单词	rooftop
释义	rooftoprooftop /ˈruftɑp/ noun [countable] the upper surface of a roof:  A cat was up on the rooftop. → see also shout something from the rooftops at shout1 (2)
随便看	hydra hydrant hydrate hydration hydraulic hydraulically hydraulics hydro hydro- hydrocarbon hydrocephalic hydrocephaly hydrochloric acid hydrocortisone hydroelectric hydroelectrically hydroelectric energy hydroelectricity hydrofoil hydrogen hydrogenated hydrogen bomb hydrogen bond hydrogen fuel cell hydrogen peroxide

英语词典包含48224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。