单词	umbrella pulley
释义	umbrella pulley 伞形滑轮
随便看	three trees three tripod system of observation three true outcomes three-tube camera three-tube telecine three-tube video projector three-tube vidicon telecine camera three-twenty three-two three-two meter three-two pulldown three-two time three-ty threety three types of disease causes three types of memory system three unbalanced power three unders in coal mining three unique catalytic converter threeunit three-unit three unit three-unit code three unit code three unities 看孙郎看孤鸿明灭看射猛虎终残年看尽昏朝看尽栖鸦乱舞看尽落花能几醉看尽鹅黄嫩绿看尽鹅黄嫩绿看年年三月看归来累德累心累掯累教不改累日累时累月经年累棋累次累死