单词	concavo-concave
释义	con·ca·vo-con·cave (kŏn-kā′vō-kŏn-kāv) adj. Concave on both surfaces; biconcave. Used of a lens.
随便看	water vapor water-vascular system waterway waterweed water wheel waterwheel water wings water witch waterworks watery Watlings Island WATS Watson Watson Watson Watson Watson-Crick model watt Watt wattage Watteau watt-hour wattle wattle wattle and daub

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。