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单词	crank arm operator
释义	crank arm operator roto operator roto operator A gear-driven device, turned with a small crank handle or knob; used to open and close jalousies, awning windows, casement windows, and fanlights.
随便看	fog bank fogbank fog banks fog belt fogbom fog-bound fogbound fog bow fogbow fogbows fraenulum fraenulums fraenum fraenums fraerman, ruvim fraerman, ruvim isaevich fraes fraeulein fraf fra filippo lippi fra fra potato frafs frafu frag fragarach

英语词典包含2567994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。