单词	abacus
释义	abacusabacus /ˈæbəkəs, əˈbæ-/ noun [countable] Etymology ETYMOLOGYabacus Origin: 1300-1400 Latin Greek abax flat piece of stone a wooden frame with small beads used for counting [Origin: 1300–1400 Latin, Greek abax flat piece of stone]
随便看	rational rationale rational equation rational expression rational function rationalism rationalist rationality rationalization rationalize rationally rational number rationing rat race rats rattan rat-tat-tat rattle rattled rattler rattlesnake rattletrap rattling rat trap ratty

英语词典包含48224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。