单词	jack arch
释义	jack arch noun : a flat arch (as a lintel with a keystone) Word History Etymology jack entry 1 (something smaller)
随便看	synanthropes synanthropic synanthropy synanthy synaphea synapheia synapomorphies synapomorphy synaposematic synaposematism synapse synapsed synapses synapsid Synapsida synapsidae synapsidas synapsids synapsing synapsis synaptai synapte synaptes synaptic synaptic nervous system

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。