单词	back gear
释义	back gear noun variants or back gearing : the gearing at the headstock of a lathe for reducing the speed of the spindle from that of the driving pulley back-geared ˈ⸗¦⸗ adjective Word History First Known Use 1865, in the meaning defined above
随便看	black scabbard fish black scabbardfish black scale black scoter black scour black scour worm black scours black scrub oak black scurf Black Sea black sea bass black sea devil black shale black shank black shark black sheep black sigatoka black silver black skimmer black slash pine black sloe black smallpox black smoker black snake black snapper

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。