单词	pump bob
释义	pump bob noun : a bell crank or similar device for converting rotary into reciprocating motion Word History Etymology pump entry 1
随便看	ofter oftest ofttime ofttimes OG og og clock og's ogadai Ogaden ogalala Ogalala ogalalae ogalalas ogam ogams oganesson ogasawara islands Ogbomosho Ogcocephalidae ogcocephalidaes Ogcocephalus ogdai Ogden Ogdoad

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。