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单词	pitch line
释义	pitch line noun 1 : the line on which the pitch of gear teeth or sprocket teeth is measured and which consists of an ideal line in a toothed gear or rack which bears such a relation to a corresponding line in another gear with which it works that the two lines will have a common velocity (as in rolling contact) 2 : the line from which players lag in the game of marbles Word History Etymology pitch entry 4
随便看	coulter Coulter pine coulter's pine coulterneb coulters coulé couma coumadins coumalic acid coumalin coumara nut coumaran coumarin coumarins coumarone coumarone resin coumarone-indene resin coumarones coumarou coumarounae coumarounas coumarous coumbite coun council

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。