单词	lichen
释义	lichenlichen /ˈlaɪkən/ noun [countable, uncountable] Etymology ETYMOLOGYlichen Origin: 1600-1700 Latin Greek leichen a gray, green, or yellow combination of fungus and algae that spreads over the surface of stones and trees
随便看	semi- semi semiannual semiannually semi-arid semi-autobiographical semiautomatic semicircle semicircular semicircular canal semicolon semiconducting semiconductor semiconscious semidarkness semidiurnal tide semifinal semifinalist semigloss semilunar valve semi-metal seminal seminar seminarian seminary

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。