单词	hydronautics
释义	hydronautics noun plural but singular in construction hy·​dro·​nau·​tics (ˈ)hīdrə¦nȯtiks : the science of constructing and operating marine craft and instruments designed to explore the ocean environment Word History Etymology hydr- + -nautics (as in aeronautics)
随便看	sub-castes sub-ceiling sub-ceilings sub-cellar sub-cellars sub-chapter sub-chapters sub-chief sub-chiefs sub-clan sub-clans sub-cloud car sub-cluster sub-clusters sub-code sub-codes sub-collection sub-collections sub-college sub-collegiate sub-colonies sub-colony sub-commission sub-commissions sub-component

英语词典包含469781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。