单词	plano-concave
释义	pla·no-con·cave (plā′nō-kŏn-kāv, -kŏnkāv′) adj. Flat on one side and concave on the other: a plano-concave lens. plano-concave Light rays disperse through a plano-concave lens.
随便看	vo. VOA VOC voc. vocable vocabulary vocal vocal cords vocalic vocalically empiricist emplace emplacement emplane emplane employ employability employable employe employee employer employment employment agency empoison emporium

英语词典包含135693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。