单词	causa sine qua non
释义	causa sine qua non Latin noun phrase cau·​sa si·​ne qua non ˈkau̇-ˌsä-ˌsi-nā-kwä-ˈnōn  : cause without which not : a necessary cause or condition
随便看	hygroscopic cell hygroscopic coefficient hygroscopic moisture hygroscopic water hygroscopicities hygroscopicity hygrostat hygrostats hygrothermal hygrothermograph hygrotramae hygrotramas hygrotramata hying hykes Hyksos hyl- hyla hylactophrynes hylae Hylam hylams hylas hyle hylean

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。